155608971 has 16 divisors (see below), whose sum is σ = 238828800. Its totient is φ = 88278048.

The previous prime is 155608967. The next prime is 155608991. The reversal of 155608971 is 179806551.

155608971 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 155608971 - 2² = 155608967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155608951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23736 + ... + 29573.

It is an arithmetic number, because the mean of its divisors is an integer number (14926800).

Almost surely, 2^155608971 is an apocalyptic number.

155608971 is a deficient number, since it is larger than the sum of its proper divisors (83219829).

155608971 is a wasteful number, since it uses less digits than its factorization.

155608971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53458.

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 155608971 is about 12474.3324871514. The cubic root of 155608971 is about 537.8711002074.

It can be divided in two parts, 15560 and 8971, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 155608971 in words is "one hundred fifty-five million, six hundred eight thousand, nine hundred seventy-one".