157166273 has 4 divisors (see below), whose sum is σ = 171454128. Its totient is φ = 142878420.

The previous prime is 157166267. The next prime is 157166281. The reversal of 157166273 is 372661751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157166273 - 2¹² = 157162177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157166203) 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, 7143911 + ... + 7143932.

It is an arithmetic number, because the mean of its divisors is an integer number (42863532).

Almost surely, 2^157166273 is an apocalyptic number.

It is an amenable number.

157166273 is a deficient number, since it is larger than the sum of its proper divisors (14287855).

157166273 is a wasteful number, since it uses less digits than its factorization.

157166273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14287854.

The product of its digits is 52920, while the sum is 38.

The square root of 157166273 is about 12536.5973453725. The cubic root of 157166273 is about 539.6594480555.

The spelling of 157166273 in words is "one hundred fifty-seven million, one hundred sixty-six thousand, two hundred seventy-three".