157999202 has 8 divisors (see below), whose sum is σ = 237068076. Its totient is φ = 78976512.

The previous prime is 157999189. The next prime is 157999253. The reversal of 157999202 is 202999751.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 113656921 + 44342281 = 10661^2 + 6659^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103 + ... + 17810.

Almost surely, 2^157999202 is an apocalyptic number.

157999202 is a deficient number, since it is larger than the sum of its proper divisors (79068874).

157999202 is a wasteful number, since it uses less digits than its factorization.

157999202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23092.

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

The square root of 157999202 is about 12569.7733472008. The cubic root of 157999202 is about 540.6111074292.

The spelling of 157999202 in words is "one hundred fifty-seven million, nine hundred ninety-nine thousand, two hundred two".