1504539997 has 2 divisors, whose sum is σ = 1504539998. Its totient is φ = 1504539996.

The previous prime is 1504539989. The next prime is 1504540021. The reversal of 1504539997 is 7999354051.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833419161 + 671120836 = 28869^2 + 25906^2 .

It is a cyclic number.

It is not a de Polignac number, because 1504539997 - 2³ = 1504539989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1504530997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752269998 + 752269999.

It is an arithmetic number, because the mean of its divisors is an integer number (752269999).

Almost surely, 2^1504539997 is an apocalyptic number.

It is an amenable number.

1504539997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1504539997 is an equidigital number, since it uses as much as digits as its factorization.

1504539997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 1504539997 is about 38788.4002892617. The cubic root of 1504539997 is about 1145.8679680721.

The spelling of 1504539997 in words is "one billion, five hundred four million, five hundred thirty-nine thousand, nine hundred ninety-seven".