345502631 has 6 divisors (see below), whose sum is σ = 364644432. Its totient is φ = 327317940.

The previous prime is 345502627. The next prime is 345502639. The reversal of 345502631 is 136205543.

It is not a de Polignac number, because 345502631 - 2² = 345502627 is a prime.

It is a super-2 number, since 2×345502631² = 238744136055844322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345502594 and 345502603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345502639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 478175 + ... + 478896.

It is an arithmetic number, because the mean of its divisors is an integer number (60774072).

Almost surely, 2^345502631 is an apocalyptic number.

345502631 is a deficient number, since it is larger than the sum of its proper divisors (19141801).

345502631 is an equidigital number, since it uses as much as digits as its factorization.

345502631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957109 (or 957090 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 345502631 is about 18587.7010681795. The cubic root of 345502631 is about 701.6983461930.

The spelling of 345502631 in words is "three hundred forty-five million, five hundred two thousand, six hundred thirty-one".