157144273 has 12 divisors (see below), whose sum is σ = 186017524. Its totient is φ = 131868000.

The previous prime is 157144237. The next prime is 157144313. The reversal of 157144273 is 372441751.

It can be written as a sum of positive squares in 2 ways, for example, as 96491329 + 60652944 = 9823^2 + 7788^2 .

It is not a de Polignac number, because 157144273 - 2⁹ = 157143761 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (157142273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48378 + ... + 51523.

Almost surely, 2^157144273 is an apocalyptic number.

157144273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157144273 is a deficient number, since it is larger than the sum of its proper divisors (28873251).

157144273 is a wasteful number, since it uses less digits than its factorization.

157144273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99936 (or 99925 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 157144273 is about 12535.7198835966. The cubic root of 157144273 is about 539.6342665251.

The spelling of 157144273 in words is "one hundred fifty-seven million, one hundred forty-four thousand, two hundred seventy-three".