625643141 has 4 divisors (see below), whose sum is σ = 627055872. Its totient is φ = 624230412.

The previous prime is 625643087. The next prime is 625643167. The reversal of 625643141 is 141346526.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141346526 = 2 ⋅70673263.

It is a cyclic number.

It is not a de Polignac number, because 625643141 - 2²² = 621448837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625643098 and 625643107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625693141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705701 + ... + 706586.

It is an arithmetic number, because the mean of its divisors is an integer number (156763968).

Almost surely, 2^625643141 is an apocalyptic number.

It is an amenable number.

625643141 is a deficient number, since it is larger than the sum of its proper divisors (1412731).

625643141 is a wasteful number, since it uses less digits than its factorization.

625643141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412730.

The product of its digits is 17280, while the sum is 32.

The square root of 625643141 is about 25012.8595126587. The cubic root of 625643141 is about 855.2811409731.

Adding to 625643141 its reverse (141346526), we get a palindrome (766989667).

The spelling of 625643141 in words is "six hundred twenty-five million, six hundred forty-three thousand, one hundred forty-one".