131631022 has 8 divisors (see below), whose sum is σ = 203815872. Its totient is φ = 63692400.

The previous prime is 131631011. The next prime is 131631023. The reversal of 131631022 is 220136131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131631023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061479 + ... + 1061602.

It is an arithmetic number, because the mean of its divisors is an integer number (25476984).

Almost surely, 2^131631022 is an apocalyptic number.

131631022 is a deficient number, since it is larger than the sum of its proper divisors (72184850).

131631022 is a wasteful number, since it uses less digits than its factorization.

131631022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123114.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 131631022 is about 11473.0563495522. The cubic root of 131631022 is about 508.6894739313.

Adding to 131631022 its reverse (220136131), we get a palindrome (351767153).

The spelling of 131631022 in words is "one hundred thirty-one million, six hundred thirty-one thousand, twenty-two".