155340315 has 32 divisors (see below), whose sum is σ = 297407040. Its totient is φ = 76474368.

The previous prime is 155340313. The next prime is 155340329. The reversal of 155340315 is 513043551.

155340315 is a `hidden beast` number, since 1 + 5 + 5 + 340 + 315 = 666.

It is not a de Polignac number, because 155340315 - 2¹ = 155340313 is a prime.

It is a super-2 number, since 2×155340315² = 48261226928598450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (155340313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42502 + ... + 46011.

It is an arithmetic number, because the mean of its divisors is an integer number (9293970).

Almost surely, 2^155340315 is an apocalyptic number.

155340315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155340315 is a deficient number, since it is larger than the sum of its proper divisors (142066725).

155340315 is a wasteful number, since it uses less digits than its factorization.

155340315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88540 (or 88534 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 155340315 is about 12463.5594835504. The cubic root of 155340315 is about 537.5613804070.

Adding to 155340315 its reverse (513043551), we get a palindrome (668383866).

The spelling of 155340315 in words is "one hundred fifty-five million, three hundred forty thousand, three hundred fifteen".