345523031 has 8 divisors (see below), whose sum is σ = 404515104. Its totient is φ = 288938880.

The previous prime is 345523019. The next prime is 345523049. The reversal of 345523031 is 130325543.

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

It is a cyclic number.

It is not a de Polignac number, because 345523031 - 2¹⁰ = 345522007 is a prime.

It is a super-2 number, since 2×345523031² = 238772329902853922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345523001) 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 7 ways as a sum of consecutive naturals, for example, 601670 + ... + 602243.

It is an arithmetic number, because the mean of its divisors is an integer number (50564388).

Almost surely, 2^345523031 is an apocalyptic number.

345523031 is a deficient number, since it is larger than the sum of its proper divisors (58992073).

345523031 is a wasteful number, since it uses less digits than its factorization.

345523031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203961.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 345523031 is about 18588.2498100278. The cubic root of 345523031 is about 701.7121563769.

Adding to 345523031 its reverse (130325543), we get a palindrome (475848574).

The spelling of 345523031 in words is "three hundred forty-five million, five hundred twenty-three thousand, thirty-one".