345213015 has 32 divisors (see below), whose sum is σ = 639252480. Its totient is φ = 155810304.

The previous prime is 345213007. The next prime is 345213017. The reversal of 345213015 is 510312543.

It is not a de Polignac number, because 345213015 - 2³ = 345213007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345213017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 12514 + ... + 29103.

It is an arithmetic number, because the mean of its divisors is an integer number (19976640).

Almost surely, 2^345213015 is an apocalyptic number.

345213015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

345213015 is a deficient number, since it is larger than the sum of its proper divisors (294039465).

345213015 is a wasteful number, since it uses less digits than its factorization.

345213015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41711.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 345213015 is about 18579.9089072040. The cubic root of 345213015 is about 701.5022262410.

Adding to 345213015 its reverse (510312543), we get a palindrome (855525558).

The spelling of 345213015 in words is "three hundred forty-five million, two hundred thirteen thousand, fifteen".