157033187 has 4 divisors (see below), whose sum is σ = 157061016. Its totient is φ = 157005360.

The previous prime is 157033183. The next prime is 157033211. The reversal of 157033187 is 781330751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781330751 = 67 ⋅11661653.

It is a cyclic number.

It is not a de Polignac number, because 157033187 - 2² = 157033183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157033181) 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 3 ways as a sum of consecutive naturals, for example, 2114 + ... + 17847.

It is an arithmetic number, because the mean of its divisors is an integer number (39265254).

Almost surely, 2^157033187 is an apocalyptic number.

157033187 is a deficient number, since it is larger than the sum of its proper divisors (27829).

157033187 is an equidigital number, since it uses as much as digits as its factorization.

157033187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27828.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 157033187 is about 12531.2883216372. The cubic root of 157033187 is about 539.5070799131.

The spelling of 157033187 in words is "one hundred fifty-seven million, thirty-three thousand, one hundred eighty-seven".