2152357251 has 8 divisors (see below), whose sum is σ = 3130701504. Its totient is φ = 1304458920.

The previous prime is 2152357247. The next prime is 2152357253. The reversal of 2152357251 is 1527532512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2152357251 - 2² = 2152357247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 65222947 = 2152357251 / (2 + 1 + 5 + 2 + 3 + 5 + 7 + 2 + 5 + 1).

It is not an unprimeable number, because it can be changed into a prime (2152357253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32611441 + ... + 32611506.

It is an arithmetic number, because the mean of its divisors is an integer number (391337688).

Almost surely, 2^2152357251 is an apocalyptic number.

2152357251 is a deficient number, since it is larger than the sum of its proper divisors (978344253).

2152357251 is a wasteful number, since it uses less digits than its factorization.

2152357251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65222961.

The product of its digits is 21000, while the sum is 33.

The square root of 2152357251 is about 46393.5044052505. The cubic root of 2152357251 is about 1291.1344008516.

Adding to 2152357251 its reverse (1527532512), we get a palindrome (3679889763).

The spelling of 2152357251 in words is "two billion, one hundred fifty-two million, three hundred fifty-seven thousand, two hundred fifty-one".