855158153 has 4 divisors (see below), whose sum is σ = 856677648. Its totient is φ = 853638660.

The previous prime is 855158141. The next prime is 855158179. The reversal of 855158153 is 351851558.

It is a happy number.

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: 351851558 = 2 ⋅175925779.

It is a cyclic number.

It is not a de Polignac number, because 855158153 - 2²⁴ = 838380937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855158153.

It is not an unprimeable number, because it can be changed into a prime (855158053) 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, 758903 + ... + 760028.

It is an arithmetic number, because the mean of its divisors is an integer number (214169412).

Almost surely, 2^855158153 is an apocalyptic number.

It is an amenable number.

855158153 is a deficient number, since it is larger than the sum of its proper divisors (1519495).

855158153 is a wasteful number, since it uses less digits than its factorization.

855158153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519494.

The product of its digits is 120000, while the sum is 41.

The square root of 855158153 is about 29243.0872686179. The cubic root of 855158153 is about 949.1805132441.

The spelling of 855158153 in words is "eight hundred fifty-five million, one hundred fifty-eight thousand, one hundred fifty-three".