157291199 has 8 divisors (see below), whose sum is σ = 171777312. Its totient is φ = 143146080.

The previous prime is 157291171. The next prime is 157291217. The reversal of 157291199 is 991192751.

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

It is a cyclic number.

It is not a de Polignac number, because 157291199 - 2¹² = 157287103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157291399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84284 + ... + 86129.

It is an arithmetic number, because the mean of its divisors is an integer number (21472164).

Almost surely, 2^157291199 is an apocalyptic number.

157291199 is a deficient number, since it is larger than the sum of its proper divisors (14486113).

157291199 is a wasteful number, since it uses less digits than its factorization.

157291199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170497.

The product of its digits is 51030, while the sum is 44.

The square root of 157291199 is about 12541.5788081087. The cubic root of 157291199 is about 539.8023956914.

The spelling of 157291199 in words is "one hundred fifty-seven million, two hundred ninety-one thousand, one hundred ninety-nine".