157253949 has 12 divisors (see below), whose sum is σ = 227253312. Its totient is φ = 104785800.

The previous prime is 157253933. The next prime is 157253953. The reversal of 157253949 is 949352751.

It is a happy number.

157253949 is a `hidden beast` number, since 1 + 5 + 72 + 539 + 49 = 666.

It is not a de Polignac number, because 157253949 - 2⁴ = 157253933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157253989) 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, 34684 + ... + 38954.

It is an arithmetic number, because the mean of its divisors is an integer number (18937776).

Almost surely, 2^157253949 is an apocalyptic number.

It is an amenable number.

157253949 is a deficient number, since it is larger than the sum of its proper divisors (69999363).

157253949 is a wasteful number, since it uses less digits than its factorization.

157253949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368 (or 8365 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 157253949 is about 12540.0936599373. The cubic root of 157253949 is about 539.7597799848.

The spelling of 157253949 in words is "one hundred fifty-seven million, two hundred fifty-three thousand, nine hundred forty-nine".