8812157 has 4 divisors (see below), whose sum is σ = 8911260. Its totient is φ = 8713056.

The previous prime is 8812147. The next prime is 8812207. The reversal of 8812157 is 7512188.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 454276 + 8357881 = 674^2 + 2891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8812157 is a prime.

It is a super-2 number, since 2×8812157² = 155308221985298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8812117) 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, 49418 + ... + 49595.

It is an arithmetic number, because the mean of its divisors is an integer number (2227815).

Almost surely, 2^8812157 is an apocalyptic number.

It is an amenable number.

8812157 is a deficient number, since it is larger than the sum of its proper divisors (99103).

8812157 is an equidigital number, since it uses as much as digits as its factorization.

8812157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99102.

The product of its digits is 4480, while the sum is 32.

The square root of 8812157 is about 2968.5277495755. The cubic root of 8812157 is about 206.5510507797.

The spelling of 8812157 in words is "eight million, eight hundred twelve thousand, one hundred fifty-seven".