1161502651 has 2 divisors, whose sum is σ = 1161502652. Its totient is φ = 1161502650.

The previous prime is 1161502649. The next prime is 1161502697. The reversal of 1161502651 is 1562051611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161502651 - 2¹ = 1161502649 is a prime.

Together with 1161502649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1161502621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580751325 + 580751326.

It is an arithmetic number, because the mean of its divisors is an integer number (580751326).

Almost surely, 2^1161502651 is an apocalyptic number.

1161502651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161502651 is an equidigital number, since it uses as much as digits as its factorization.

1161502651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1161502651 is about 34080.8252687637. The cubic root of 1161502651 is about 1051.1710746588.

The spelling of 1161502651 in words is "one billion, one hundred sixty-one million, five hundred two thousand, six hundred fifty-one".