155412315 has 48 divisors (see below), whose sum is σ = 277250688. Its totient is φ = 80494848.

The previous prime is 155412287. The next prime is 155412319. The reversal of 155412315 is 513214551.

It is not a de Polignac number, because 155412315 - 2¹² = 155408219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155412319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 416469 + ... + 416841.

It is an arithmetic number, because the mean of its divisors is an integer number (5776056).

Almost surely, 2^155412315 is an apocalyptic number.

155412315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155412315 is a deficient number, since it is larger than the sum of its proper divisors (121838373).

155412315 is a wasteful number, since it uses less digits than its factorization.

155412315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 625 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 155412315 is about 12466.4475693760. The cubic root of 155412315 is about 537.6444205397.

Adding to 155412315 its reverse (513214551), we get a palindrome (668626866).

The spelling of 155412315 in words is "one hundred fifty-five million, four hundred twelve thousand, three hundred fifteen".