1131739801 has 2 divisors, whose sum is σ = 1131739802. Its totient is φ = 1131739800.

The previous prime is 1131739789. The next prime is 1131739823. The reversal of 1131739801 is 1089371311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621205776 + 510534025 = 24924^2 + 22595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131739801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131739871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565869900 + 565869901.

It is an arithmetic number, because the mean of its divisors is an integer number (565869901).

Almost surely, 2^1131739801 is an apocalyptic number.

It is an amenable number.

1131739801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131739801 is an equidigital number, since it uses as much as digits as its factorization.

1131739801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 1131739801 is about 33641.3406540227. The cubic root of 1131739801 is about 1042.1147185635.

The spelling of 1131739801 in words is "one billion, one hundred thirty-one million, seven hundred thirty-nine thousand, eight hundred one".