345155615 has 16 divisors (see below), whose sum is σ = 498270720. Its totient is φ = 224220960.

The previous prime is 345155611. The next prime is 345155689. The reversal of 345155615 is 516551543.

It is not a de Polignac number, because 345155615 - 2² = 345155611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345155611) 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 15 ways as a sum of consecutive naturals, for example, 258851 + ... + 260180.

It is an arithmetic number, because the mean of its divisors is an integer number (31141920).

Almost surely, 2^345155615 is an apocalyptic number.

345155615 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

345155615 is a deficient number, since it is larger than the sum of its proper divisors (153115105).

345155615 is a wasteful number, since it uses less digits than its factorization.

345155615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519062.

The product of its digits is 45000, while the sum is 35.

The square root of 345155615 is about 18578.3641637255. The cubic root of 345155615 is about 701.4633435241.

The spelling of 345155615 in words is "three hundred forty-five million, one hundred fifty-five thousand, six hundred fifteen".