345525531 has 16 divisors (see below), whose sum is σ = 500697120. Its totient is φ = 210677760.

The previous prime is 345525457. The next prime is 345525541. The reversal of 345525531 is 135525543.

It is a happy number.

It is not a de Polignac number, because 345525531 - 2¹⁴ = 345509147 is a prime.

It is a super-2 number, since 2×345525531² = 238775785145663922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345525492 and 345525501.

It is not an unprimeable number, because it can be changed into a prime (345525541) 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 15 ways as a sum of consecutive naturals, for example, 36390 + ... + 44891.

It is an arithmetic number, because the mean of its divisors is an integer number (31293570).

Almost surely, 2^345525531 is an apocalyptic number.

345525531 is a deficient number, since it is larger than the sum of its proper divisors (155171589).

345525531 is a wasteful number, since it uses less digits than its factorization.

345525531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81406.

The product of its digits is 45000, while the sum is 33.

The square root of 345525531 is about 18588.3170566891. The cubic root of 345525531 is about 701.7138487640.

The spelling of 345525531 in words is "three hundred forty-five million, five hundred twenty-five thousand, five hundred thirty-one".