1492965641 has 4 divisors (see below), whose sum is σ = 1571542800. Its totient is φ = 1414388484.

The previous prime is 1492965631. The next prime is 1492965671. The reversal of 1492965641 is 1465692941.

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: 1465692941 = 283 ⋅5179127.

It is a cyclic number.

It is not a de Polignac number, because 1492965641 - 2¹⁸ = 1492703497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1492965601) 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, 39288551 + ... + 39288588.

It is an arithmetic number, because the mean of its divisors is an integer number (392885700).

Almost surely, 2^1492965641 is an apocalyptic number.

It is an amenable number.

1492965641 is a deficient number, since it is larger than the sum of its proper divisors (78577159).

1492965641 is an equidigital number, since it uses as much as digits as its factorization.

1492965641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78577158.

The product of its digits is 466560, while the sum is 47.

The square root of 1492965641 is about 38638.9135587428. The cubic root of 1492965641 is about 1142.9220311841.

The spelling of 1492965641 in words is "one billion, four hundred ninety-two million, nine hundred sixty-five thousand, six hundred forty-one".