131422819 has 6 divisors (see below), whose sum is σ = 144456620. Its totient is φ = 119475180.

The previous prime is 131422817. The next prime is 131422877. The reversal of 131422819 is 918224131.

It is not a de Polignac number, because 131422819 - 2¹ = 131422817 is a prime.

It is a super-2 number, since 2×131422819² = 34543914707813522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131422813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542949 + ... + 543190.

Almost surely, 2^131422819 is an apocalyptic number.

131422819 is a deficient number, since it is larger than the sum of its proper divisors (13033801).

131422819 is a wasteful number, since it uses less digits than its factorization.

131422819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086161 (or 1086150 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 131422819 is about 11463.9791957243. The cubic root of 131422819 is about 508.4211315039.

The spelling of 131422819 in words is "one hundred thirty-one million, four hundred twenty-two thousand, eight hundred nineteen".