345264631 has 4 divisors (see below), whose sum is σ = 351779112. Its totient is φ = 338750152.

The previous prime is 345264629. The next prime is 345264641. The reversal of 345264631 is 136462543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345264631 - 2¹ = 345264629 is a prime.

It is a super-2 number, since 2×345264631² = 238415330839132322, 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 (345264641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3257161 + ... + 3257266.

It is an arithmetic number, because the mean of its divisors is an integer number (87944778).

Almost surely, 2^345264631 is an apocalyptic number.

345264631 is a deficient number, since it is larger than the sum of its proper divisors (6514481).

345264631 is an equidigital number, since it uses as much as digits as its factorization.

345264631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514480.

The product of its digits is 51840, while the sum is 34.

The square root of 345264631 is about 18581.2978825485. The cubic root of 345264631 is about 701.5371872002.

The spelling of 345264631 in words is "three hundred forty-five million, two hundred sixty-four thousand, six hundred thirty-one".