1373984537 has 2 divisors, whose sum is σ = 1373984538. Its totient is φ = 1373984536.

The previous prime is 1373984501. The next prime is 1373984543. The reversal of 1373984537 is 7354893731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1274204416 + 99780121 = 35696^2 + 9989^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373984537 - 2⁶ = 1373984473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373984587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686992268 + 686992269.

It is an arithmetic number, because the mean of its divisors is an integer number (686992269).

Almost surely, 2^1373984537 is an apocalyptic number.

It is an amenable number.

1373984537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373984537 is an equidigital number, since it uses as much as digits as its factorization.

1373984537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 50.

The square root of 1373984537 is about 37067.2974062043. The cubic root of 1373984537 is about 1111.7162361123.

The spelling of 1373984537 in words is "one billion, three hundred seventy-three million, nine hundred eighty-four thousand, five hundred thirty-seven".