1492497641 has 2 divisors, whose sum is σ = 1492497642. Its totient is φ = 1492497640.

The previous prime is 1492497613. The next prime is 1492497647. The reversal of 1492497641 is 1467942941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104565225 + 387932416 = 33235^2 + 19696^2 .

It is a cyclic number.

It is not a de Polignac number, because 1492497641 - 2¹⁴ = 1492481257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1492497647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746248820 + 746248821.

It is an arithmetic number, because the mean of its divisors is an integer number (746248821).

Almost surely, 2^1492497641 is an apocalyptic number.

It is an amenable number.

1492497641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492497641 is an equidigital number, since it uses as much as digits as its factorization.

1492497641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 1492497641 is about 38632.8570131695. The cubic root of 1492497641 is about 1142.8025947648.

The spelling of 1492497641 in words is "one billion, four hundred ninety-two million, four hundred ninety-seven thousand, six hundred forty-one".