1115737631 has 2 divisors, whose sum is σ = 1115737632. Its totient is φ = 1115737630.

The previous prime is 1115737583. The next prime is 1115737643. The reversal of 1115737631 is 1367375111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1115737631 - 2²² = 1111543327 is a prime.

It is a super-2 number, since 2×1115737631² = 2489740922458984322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1115737591 and 1115737600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117737631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557868815 + 557868816.

It is an arithmetic number, because the mean of its divisors is an integer number (557868816).

Almost surely, 2^1115737631 is an apocalyptic number.

1115737631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115737631 is an equidigital number, since it uses as much as digits as its factorization.

1115737631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13230, while the sum is 35.

The square root of 1115737631 is about 33402.6590408608. The cubic root of 1115737631 is about 1037.1797452728.

The spelling of 1115737631 in words is "one billion, one hundred fifteen million, seven hundred thirty-seven thousand, six hundred thirty-one".