355425431 has 4 divisors (see below), whose sum is σ = 358747272. Its totient is φ = 352103592.

The previous prime is 355425397. The next prime is 355425449. The reversal of 355425431 is 134524553.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134524553 = 17 ⋅7913209.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-355425431 is a prime.

It is a super-2 number, since 2×355425431² = 252654474003071522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355925431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1660760 + ... + 1660973.

It is an arithmetic number, because the mean of its divisors is an integer number (89686818).

Almost surely, 2^355425431 is an apocalyptic number.

355425431 is a deficient number, since it is larger than the sum of its proper divisors (3321841).

355425431 is a wasteful number, since it uses less digits than its factorization.

355425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321840.

The product of its digits is 36000, while the sum is 32.

The square root of 355425431 is about 18852.7300675526. The cubic root of 355425431 is about 708.3526118428.

Adding to 355425431 its reverse (134524553), we get a palindrome (489949984).

The spelling of 355425431 in words is "three hundred fifty-five million, four hundred twenty-five thousand, four hundred thirty-one".