1374557539 has 2 divisors, whose sum is σ = 1374557540. Its totient is φ = 1374557538.

The previous prime is 1374557531. The next prime is 1374557623. The reversal of 1374557539 is 9357554731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1374557539 - 2³ = 1374557531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1374557492 and 1374557501.

It is not a weakly prime, because it can be changed into another prime (1374557531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687278769 + 687278770.

It is an arithmetic number, because the mean of its divisors is an integer number (687278770).

Almost surely, 2^1374557539 is an apocalyptic number.

1374557539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374557539 is an equidigital number, since it uses as much as digits as its factorization.

1374557539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1984500, while the sum is 49.

The square root of 1374557539 is about 37075.0258125332. The cubic root of 1374557539 is about 1111.8707567970.

The spelling of 1374557539 in words is "one billion, three hundred seventy-four million, five hundred fifty-seven thousand, five hundred thirty-nine".