1355113531 has 2 divisors, whose sum is σ = 1355113532. Its totient is φ = 1355113530.

The previous prime is 1355113499. The next prime is 1355113547. The reversal of 1355113531 is 1353115531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1355113531 - 2⁵ = 1355113499 is a prime.

It is a super-2 number, since 2×1355113531² = 3672665363798575922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1355113531.

It is not a weakly prime, because it can be changed into another prime (1355113561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677556765 + 677556766.

It is an arithmetic number, because the mean of its divisors is an integer number (677556766).

Almost surely, 2^1355113531 is an apocalyptic number.

1355113531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355113531 is an equidigital number, since it uses as much as digits as its factorization.

1355113531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3375, while the sum is 28.

The square root of 1355113531 is about 36811.8667144170. The cubic root of 1355113531 is about 1106.6031291343.

The spelling of 1355113531 in words is "one billion, three hundred fifty-five million, one hundred thirteen thousand, five hundred thirty-one".