345149753 has 24 divisors (see below), whose sum is σ = 401345280. Its totient is φ = 294734880.

The previous prime is 345149741. The next prime is 345149789. The reversal of 345149753 is 357941543.

It is not a de Polignac number, because 345149753 - 2⁴ = 345149737 is a prime.

It is a super-2 number, since 2×345149753² = 238256703991922018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345149753.

It is not an unprimeable number, because it can be changed into a prime (345149353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212378 + ... + 213996.

It is an arithmetic number, because the mean of its divisors is an integer number (16722720).

Almost surely, 2^345149753 is an apocalyptic number.

It is an amenable number.

345149753 is a deficient number, since it is larger than the sum of its proper divisors (56195527).

345149753 is a wasteful number, since it uses less digits than its factorization.

345149753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1686 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

The square root of 345149753 is about 18578.2063988965. The cubic root of 345149753 is about 701.4593723671.

The spelling of 345149753 in words is "three hundred forty-five million, one hundred forty-nine thousand, seven hundred fifty-three".