157573073 has 6 divisors (see below), whose sum is σ = 183299346. Its totient is φ = 135062592.

The previous prime is 157573067. The next prime is 157573103. The reversal of 157573073 is 370375751.

It can be written as a sum of positive squares in only one way, i.e., 83320384 + 74252689 = 9128^2 + 8617^2 .

It is not a de Polignac number, because 157573073 - 2⁴ = 157573057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157573033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1607840 + ... + 1607937.

It is an arithmetic number, because the mean of its divisors is an integer number (30549891).

Almost surely, 2^157573073 is an apocalyptic number.

It is an amenable number.

157573073 is a deficient number, since it is larger than the sum of its proper divisors (25726273).

157573073 is an equidigital number, since it uses as much as digits as its factorization.

157573073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215791 (or 3215784 counting only the distinct ones).

The product of its (nonzero) digits is 77175, while the sum is 38.

The square root of 157573073 is about 12552.8113584169. The cubic root of 157573073 is about 540.1246545785.

The spelling of 157573073 in words is "one hundred fifty-seven million, five hundred seventy-three thousand, seventy-three".