155157 has 4 divisors (see below), whose sum is σ = 206880. Its totient is φ = 103436.

The previous prime is 155153. The next prime is 155161. The reversal of 155157 is 751551.

155157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (155153) and next prime (155161).

It is a cyclic number.

It is not a de Polignac number, because 155157 - 2² = 155153 is a prime.

It is a D-number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25857 + ... + 25862.

It is an arithmetic number, because the mean of its divisors is an integer number (51720).

2¹⁵⁵¹⁵⁷ is an apocalyptic number.

It is an amenable number.

155157 is a deficient number, since it is larger than the sum of its proper divisors (51723).

155157 is an equidigital number, since it uses as much as digits as its factorization.

155157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51722.

The product of its digits is 875, while the sum is 24.

The square root of 155157 is about 393.8997334348. The cubic root of 155157 is about 53.7349840874.

The spelling of 155157 in words is "one hundred fifty-five thousand, one hundred fifty-seven".