157882449 has 4 divisors (see below), whose sum is σ = 210509936. Its totient is φ = 105254964.

The previous prime is 157882433. The next prime is 157882471. The reversal of 157882449 is 944288751.

It is a happy number.

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 not a de Polignac number, because 157882449 - 2⁴ = 157882433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157882398 and 157882407.

It is not an unprimeable number, because it can be changed into a prime (157882489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26313739 + ... + 26313744.

It is an arithmetic number, because the mean of its divisors is an integer number (52627484).

Almost surely, 2^157882449 is an apocalyptic number.

It is an amenable number.

157882449 is a deficient number, since it is larger than the sum of its proper divisors (52627487).

157882449 is an equidigital number, since it uses as much as digits as its factorization.

157882449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52627486.

The product of its digits is 645120, while the sum is 48.

The square root of 157882449 is about 12565.1282922221. The cubic root of 157882449 is about 540.4779136722.

The spelling of 157882449 in words is "one hundred fifty-seven million, eight hundred eighty-two thousand, four hundred forty-nine".