157282431 has 8 divisors (see below), whose sum is σ = 210922800. Its totient is φ = 104248512.

The previous prime is 157282423. The next prime is 157282451. The reversal of 157282431 is 134282751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157282431 - 2³ = 157282423 is a prime.

It is a super-2 number, since 2×157282431² = 49475526202539522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 157282392 and 157282401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157282421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151006 + ... + 152043.

It is an arithmetic number, because the mean of its divisors is an integer number (26365350).

Almost surely, 2^157282431 is an apocalyptic number.

157282431 is a deficient number, since it is larger than the sum of its proper divisors (53640369).

157282431 is a wasteful number, since it uses less digits than its factorization.

157282431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303225.

The product of its digits is 13440, while the sum is 33.

The square root of 157282431 is about 12541.2292459711. The cubic root of 157282431 is about 539.7923653032.

The spelling of 157282431 in words is "one hundred fifty-seven million, two hundred eighty-two thousand, four hundred thirty-one".