9012855157 has 4 divisors (see below), whose sum is σ = 9017393056. Its totient is φ = 9008317260.

The previous prime is 9012855121. The next prime is 9012855179. The reversal of 9012855157 is 7515582109.

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 a cyclic number.

It is not a de Polignac number, because 9012855157 - 2³¹ = 6865371509 is a prime.

It is a super-2 number, since 2×9012855157² (a number of 21 digits) 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 (9012855457) 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, 2265969 + ... + 2269942.

It is an arithmetic number, because the mean of its divisors is an integer number (2254348264).

Almost surely, 2^9012855157 is an apocalyptic number.

It is an amenable number.

9012855157 is a deficient number, since it is larger than the sum of its proper divisors (4537899).

9012855157 is a wasteful number, since it uses less digits than its factorization.

9012855157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537898.

The product of its (nonzero) digits is 126000, while the sum is 43.

The square root of 9012855157 is about 94936.0582550171. The cubic root of 9012855157 is about 2081.0737150126.

The spelling of 9012855157 in words is "nine billion, twelve million, eight hundred fifty-five thousand, one hundred fifty-seven".