131333426 has 24 divisors (see below), whose sum is σ = 229662576. Its totient is φ = 56163240.

The previous prime is 131333413. The next prime is 131333437. The reversal of 131333426 is 624333131.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131333395 and 131333404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54785 + ... + 57131.

It is an arithmetic number, because the mean of its divisors is an integer number (9569274).

Almost surely, 2^131333426 is an apocalyptic number.

131333426 is a deficient number, since it is larger than the sum of its proper divisors (98329150).

131333426 is a wasteful number, since it uses less digits than its factorization.

131333426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934 (or 2927 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

The square root of 131333426 is about 11460.0796681349. The cubic root of 131333426 is about 508.3058303732.

Adding to 131333426 its reverse (624333131), we get a palindrome (755666557).

The spelling of 131333426 in words is "one hundred thirty-one million, three hundred thirty-three thousand, four hundred twenty-six".