155839651 has 12 divisors (see below), whose sum is σ = 178745616. Its totient is φ = 135510320.

The previous prime is 155839643. The next prime is 155839657. The reversal of 155839651 is 156938551.

155839651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155839651 - 2³ = 155839643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155839598 and 155839607.

It is not an unprimeable number, because it can be changed into a prime (155839657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25216 + ... + 30781.

It is an arithmetic number, because the mean of its divisors is an integer number (14895468).

Almost surely, 2^155839651 is an apocalyptic number.

155839651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155839651 is a deficient number, since it is larger than the sum of its proper divisors (22905965).

155839651 is a wasteful number, since it uses less digits than its factorization.

155839651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56042 (or 56031 counting only the distinct ones).

The product of its digits is 162000, while the sum is 43.

The square root of 155839651 is about 12483.5752491023. The cubic root of 155839651 is about 538.1367550804.

It can be divided in two parts, 1558 and 39651, that added together give a square (41209 = 203²).

The spelling of 155839651 in words is "one hundred fifty-five million, eight hundred thirty-nine thousand, six hundred fifty-one".