155147886 has 20 divisors (see below), whose sum is σ = 347646552. Its totient is φ = 51715908.

The previous prime is 155147821. The next prime is 155147887. The reversal of 155147886 is 688741551.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155147887) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 478690 + ... + 479013.

Almost surely, 2^155147886 is an apocalyptic number.

155147886 is an abundant number, since it is smaller than the sum of its proper divisors (192498666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155147886 is an equidigital number, since it uses as much as digits as its factorization.

155147886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957717 (or 957708 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 155147886 is about 12455.8374266847. The cubic root of 155147886 is about 537.3393192684.

The spelling of 155147886 in words is "one hundred fifty-five million, one hundred forty-seven thousand, eight hundred eighty-six".