1492731971 has 12 divisors (see below), whose sum is σ = 1618429032. Its totient is φ = 1371291264.

The previous prime is 1492731967. The next prime is 1492731973. The reversal of 1492731971 is 1791372941.

It is not a de Polignac number, because 1492731971 - 2² = 1492731967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492731973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1043885 + ... + 1045313.

It is an arithmetic number, because the mean of its divisors is an integer number (134869086).

Almost surely, 2^1492731971 is an apocalyptic number.

1492731971 is a deficient number, since it is larger than the sum of its proper divisors (125697061).

1492731971 is an frugal number, since it uses more digits than its factorization.

1492731971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 1489 counting only the distinct ones).

The product of its digits is 95256, while the sum is 44.

The square root of 1492731971 is about 38635.8896752747. The cubic root of 1492731971 is about 1142.8624003129.

The spelling of 1492731971 in words is "one billion, four hundred ninety-two million, seven hundred thirty-one thousand, nine hundred seventy-one".