136377855 has 12 divisors (see below), whose sum is σ = 236388360. Its totient is φ = 72734832.

The previous prime is 136377847. The next prime is 136377863. The reversal of 136377855 is 558773631.

136377855 is a `hidden beast` number, since 1 + 3 + 637 + 7 + 8 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (136377847) and next prime (136377863).

It is not a de Polignac number, because 136377855 - 2³ = 136377847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3030619 = 136377855 / (1 + 3 + 6 + 3 + 7 + 7 + 8 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 136377855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1515265 + ... + 1515354.

It is an arithmetic number, because the mean of its divisors is an integer number (19699030).

Almost surely, 2^136377855 is an apocalyptic number.

136377855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136377855 is a deficient number, since it is larger than the sum of its proper divisors (100010505).

136377855 is a wasteful number, since it uses less digits than its factorization.

136377855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030630 (or 3030627 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 136377855 is about 11678.0929521904. The cubic root of 136377855 is about 514.7321383299.

The spelling of 136377855 in words is "one hundred thirty-six million, three hundred seventy-seven thousand, eight hundred fifty-five".