1375337531 has 2 divisors, whose sum is σ = 1375337532. Its totient is φ = 1375337530.

The previous prime is 1375337507. The next prime is 1375337533. The reversal of 1375337531 is 1357335731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1375337531 - 2¹⁰ = 1375336507 is a prime.

It is a super-2 number, since 2×1375337531² = 3783106648354351922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1375337533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1375337533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687668765 + 687668766.

It is an arithmetic number, because the mean of its divisors is an integer number (687668766).

Almost surely, 2^1375337531 is an apocalyptic number.

1375337531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375337531 is an equidigital number, since it uses as much as digits as its factorization.

1375337531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99225, while the sum is 38.

The square root of 1375337531 is about 37085.5434232802. The cubic root of 1375337531 is about 1112.0810272009.

The spelling of 1375337531 in words is "one billion, three hundred seventy-five million, three hundred thirty-seven thousand, five hundred thirty-one".