814157 has 4 divisors (see below), whose sum is σ = 825696. Its totient is φ = 802620.

The previous prime is 814139. The next prime is 814171. The reversal of 814157 is 751418.

814157 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, and also an emirpimes, since its reverse is a distinct semiprime: 751418 = 2 ⋅375709.

It is a cyclic number.

It is not a de Polignac number, because 814157 - 2¹⁰ = 813133 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 (814127) 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, 5663 + ... + 5804.

It is an arithmetic number, because the mean of its divisors is an integer number (206424).

2⁸¹⁴¹⁵⁷ is an apocalyptic number.

It is an amenable number.

814157 is a deficient number, since it is larger than the sum of its proper divisors (11539).

814157 is a wasteful number, since it uses less digits than its factorization.

814157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538.

The product of its digits is 1120, while the sum is 26.

The square root of 814157 is about 902.3064889493. The cubic root of 814157 is about 93.3761693960.

The spelling of 814157 in words is "eight hundred fourteen thousand, one hundred fifty-seven".