155012415 has 8 divisors (see below), whose sum is σ = 248019888. Its totient is φ = 82673280.

The previous prime is 155012399. The next prime is 155012419. The reversal of 155012415 is 514210551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155012415 - 2⁴ = 155012399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155012419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5167066 + ... + 5167095.

It is an arithmetic number, because the mean of its divisors is an integer number (31002486).

Almost surely, 2^155012415 is an apocalyptic number.

155012415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155012415 is a deficient number, since it is larger than the sum of its proper divisors (93007473).

155012415 is a wasteful number, since it uses less digits than its factorization.

155012415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334169.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 155012415 is about 12450.3981864035. The cubic root of 155012415 is about 537.1828769339.

Adding to 155012415 its reverse (514210551), we get a palindrome (669222966).

The spelling of 155012415 in words is "one hundred fifty-five million, twelve thousand, four hundred fifteen".