1131653461 has 2 divisors, whose sum is σ = 1131653462. Its totient is φ = 1131653460.

The previous prime is 1131653459. The next prime is 1131653483. The reversal of 1131653461 is 1643561311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 821682225 + 309971236 = 28665^2 + 17606^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131653461 - 2¹ = 1131653459 is a prime.

Together with 1131653459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131653431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565826730 + 565826731.

It is an arithmetic number, because the mean of its divisors is an integer number (565826731).

Almost surely, 2^1131653461 is an apocalyptic number.

It is an amenable number.

1131653461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131653461 is an equidigital number, since it uses as much as digits as its factorization.

1131653461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 1131653461 is about 33640.0573869903. The cubic root of 1131653461 is about 1042.0882170441.

The spelling of 1131653461 in words is "one billion, one hundred thirty-one million, six hundred fifty-three thousand, four hundred sixty-one".