345131630 has 16 divisors (see below), whose sum is σ = 623003184. Its totient is φ = 137660160.

The previous prime is 345131627. The next prime is 345131653. The reversal of 345131630 is 36131543.

It is a super-3 number, since 3×345131630³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 345131630.

It is a congruent number.

It is an unprimeable number.

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, 45356 + ... + 52415.

It is an arithmetic number, because the mean of its divisors is an integer number (38937699).

Almost surely, 2^345131630 is an apocalyptic number.

345131630 is a deficient number, since it is larger than the sum of its proper divisors (277871554).

345131630 is a wasteful number, since it uses less digits than its factorization.

345131630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98131.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 345131630 is about 18577.7186435795. The cubic root of 345131630 is about 701.4470948262.

The spelling of 345131630 in words is "three hundred forty-five million, one hundred thirty-one thousand, six hundred thirty".