155100157 has 4 divisors (see below), whose sum is σ = 155127616. Its totient is φ = 155072700.

The previous prime is 155100151. The next prime is 155100193. The reversal of 155100157 is 751001551.

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, and also an emirpimes, since its reverse is a distinct semiprime: 751001551 = 41 ⋅18317111.

It is a cyclic number.

It is not a de Polignac number, because 155100157 - 2¹¹ = 155098109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155100151) 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, 1803 + ... + 17704.

It is an arithmetic number, because the mean of its divisors is an integer number (38781904).

Almost surely, 2^155100157 is an apocalyptic number.

It is an amenable number.

155100157 is a deficient number, since it is larger than the sum of its proper divisors (27459).

155100157 is an equidigital number, since it uses as much as digits as its factorization.

155100157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27458.

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 155100157 is about 12453.9213503218. The cubic root of 155100157 is about 537.2842120641.

The spelling of 155100157 in words is "one hundred fifty-five million, one hundred thousand, one hundred fifty-seven".