131421322 has 8 divisors (see below), whose sum is σ = 208728036. Its totient is φ = 61845312.

The previous prime is 131421317. The next prime is 131421337. The reversal of 131421322 is 223124131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 130439241 + 982081 = 11421^2 + 991^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 131421322.

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, 1932633 + ... + 1932700.

Almost surely, 2^131421322 is an apocalyptic number.

131421322 is a deficient number, since it is larger than the sum of its proper divisors (77306714).

131421322 is a wasteful number, since it uses less digits than its factorization.

131421322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865352.

The product of its digits is 288, while the sum is 19.

The square root of 131421322 is about 11463.9139040731. The cubic root of 131421322 is about 508.4192010697.

Adding to 131421322 its reverse (223124131), we get a palindrome (354545453).

The spelling of 131421322 in words is "one hundred thirty-one million, four hundred twenty-one thousand, three hundred twenty-two".