345125515 has 32 divisors (see below), whose sum is σ = 486581760. Its totient is φ = 230114304.

The previous prime is 345125479. The next prime is 345125527. The reversal of 345125515 is 515521543.

It is not a de Polignac number, because 345125515 - 2²⁵ = 311571083 is a prime.

It is a super-2 number, since 2×345125515² = 238223242208030450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199444 + ... + 201166.

It is an arithmetic number, because the mean of its divisors is an integer number (15205680).

Almost surely, 2^345125515 is an apocalyptic number.

345125515 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

345125515 is a deficient number, since it is larger than the sum of its proper divisors (141456245).

345125515 is a wasteful number, since it uses less digits than its factorization.

345125515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891.

The product of its digits is 15000, while the sum is 31.

The square root of 345125515 is about 18577.5540639773. The cubic root of 345125515 is about 701.4429520837.

The spelling of 345125515 in words is "three hundred forty-five million, one hundred twenty-five thousand, five hundred fifteen".