994977159 has 32 divisors (see below), whose sum is σ = 1472912640. Its totient is φ = 592416000.

The previous prime is 994977143. The next prime is 994977197. The reversal of 994977159 is 951779499.

It is a happy number.

It is not a de Polignac number, because 994977159 - 2⁴ = 994977143 is a prime.

It is a super-2 number, since 2×994977159² = 1979959093863422562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994977059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455532 + ... + 457710.

It is an arithmetic number, because the mean of its divisors is an integer number (46028520).

Almost surely, 2^994977159 is an apocalyptic number.

994977159 is a deficient number, since it is larger than the sum of its proper divisors (477935481).

994977159 is a wasteful number, since it uses less digits than its factorization.

994977159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431.

The product of its digits is 6429780, while the sum is 60.

The square root of 994977159 is about 31543.2585349073. The cubic root of 994977159 is about 998.3229086035.

The spelling of 994977159 in words is "nine hundred ninety-four million, nine hundred seventy-seven thousand, one hundred fifty-nine".