354175421 has 4 divisors (see below), whose sum is σ = 357826812. Its totient is φ = 350524032.

The previous prime is 354175397. The next prime is 354175429. The reversal of 354175421 is 124571453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 239042521 + 115132900 = 15461^2 + 10730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354175421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354175429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1825550 + ... + 1825743.

It is an arithmetic number, because the mean of its divisors is an integer number (89456703).

Almost surely, 2^354175421 is an apocalyptic number.

It is an amenable number.

354175421 is a deficient number, since it is larger than the sum of its proper divisors (3651391).

354175421 is an equidigital number, since it uses as much as digits as its factorization.

354175421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3651390.

The product of its digits is 16800, while the sum is 32.

The square root of 354175421 is about 18819.5489053271. The cubic root of 354175421 is about 707.5212251662.

The spelling of 354175421 in words is "three hundred fifty-four million, one hundred seventy-five thousand, four hundred twenty-one".