131628514 has 4 divisors (see below), whose sum is σ = 197442774. Its totient is φ = 65814256.

The previous prime is 131628487. The next prime is 131628559. The reversal of 131628514 is 415826131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 102111025 + 29517489 = 10105^2 + 5433^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32907127 + ... + 32907130.

Almost surely, 2^131628514 is an apocalyptic number.

131628514 is a deficient number, since it is larger than the sum of its proper divisors (65814260).

131628514 is an equidigital number, since it uses as much as digits as its factorization.

131628514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65814259.

The product of its digits is 5760, while the sum is 31.

The square root of 131628514 is about 11472.9470494725. The cubic root of 131628514 is about 508.6862431799.

The spelling of 131628514 in words is "one hundred thirty-one million, six hundred twenty-eight thousand, five hundred fourteen".