999157202 has 8 divisors (see below), whose sum is σ = 1533590256. Its totient is φ = 487960452.

The previous prime is 999157193. The next prime is 999157207. The reversal of 999157202 is 202751999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×999157202² = 1996630228616937608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999157207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5808968 + ... + 5809139.

It is an arithmetic number, because the mean of its divisors is an integer number (191698782).

Almost surely, 2^999157202 is an apocalyptic number.

999157202 is a deficient number, since it is larger than the sum of its proper divisors (534433054).

999157202 is a wasteful number, since it uses less digits than its factorization.

999157202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11618152.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 999157202 is about 31609.4479863221. The cubic root of 999157202 is about 999.7189883732.

The spelling of 999157202 in words is "nine hundred ninety-nine million, one hundred fifty-seven thousand, two hundred two".