131623426 has 8 divisors (see below), whose sum is σ = 215383824. Its totient is φ = 59828820.

The previous prime is 131623399. The next prime is 131623439. The reversal of 131623426 is 624326131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131623394 and 131623403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2991420 + ... + 2991463.

It is an arithmetic number, because the mean of its divisors is an integer number (26922978).

Almost surely, 2^131623426 is an apocalyptic number.

131623426 is a deficient number, since it is larger than the sum of its proper divisors (83760398).

131623426 is a wasteful number, since it uses less digits than its factorization.

131623426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982896.

The product of its digits is 5184, while the sum is 28.

The square root of 131623426 is about 11472.7253083128. The cubic root of 131623426 is about 508.6796888023.

Adding to 131623426 its reverse (624326131), we get a palindrome (755949557).

It can be divided in two parts, 1316 and 23426, that added together give a palindrome (24742).

The spelling of 131623426 in words is "one hundred thirty-one million, six hundred twenty-three thousand, four hundred twenty-six".