131403056 has 10 divisors (see below), whose sum is σ = 254593452. Its totient is φ = 65701520.

The previous prime is 131403049. The next prime is 131403091. The reversal of 131403056 is 650304131.

It is a happy number.

It is a super-2 number, since 2×131403056² = 34533526252278272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4106330 + ... + 4106361.

Almost surely, 2^131403056 is an apocalyptic number.

131403056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131403056 is a deficient number, since it is larger than the sum of its proper divisors (123190396).

131403056 is an equidigital number, since it uses as much as digits as its factorization.

131403056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212699 (or 8212693 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 131403056 is about 11463.1172025763. The cubic root of 131403056 is about 508.3956452385.

Adding to 131403056 its reverse (650304131), we get a palindrome (781707187).

The spelling of 131403056 in words is "one hundred thirty-one million, four hundred three thousand, fifty-six".