1492131869 has 4 divisors (see below), whose sum is σ = 1492250496. Its totient is φ = 1492013244.

The previous prime is 1492131859. The next prime is 1492131887. The reversal of 1492131869 is 9681312941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9681312941 = 599 ⋅16162459.

It is a cyclic number.

It is not a de Polignac number, because 1492131869 - 2¹² = 1492127773 is a prime.

It is a super-2 number, since 2×1492131869² = 4452915028970866322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492131859) 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, 37859 + ... + 66464.

It is an arithmetic number, because the mean of its divisors is an integer number (373062624).

Almost surely, 2^1492131869 is an apocalyptic number.

It is an amenable number.

1492131869 is a deficient number, since it is larger than the sum of its proper divisors (118627).

1492131869 is a wasteful number, since it uses less digits than its factorization.

1492131869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118626.

The product of its digits is 93312, while the sum is 44.

The square root of 1492131869 is about 38628.1227734406. The cubic root of 1492131869 is about 1142.7092301632.

The spelling of 1492131869 in words is "one billion, four hundred ninety-two million, one hundred thirty-one thousand, eight hundred sixty-nine".