1151326601 has 2 divisors, whose sum is σ = 1151326602. Its totient is φ = 1151326600.

The previous prime is 1151326567. The next prime is 1151326607. The reversal of 1151326601 is 1066231511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105629001 + 45697600 = 33251^2 + 6760^2 .

It is an emirp because it is prime and its reverse (1066231511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1151326601 - 2²² = 1147132297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1151326607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575663300 + 575663301.

It is an arithmetic number, because the mean of its divisors is an integer number (575663301).

Almost surely, 2^1151326601 is an apocalyptic number.

It is an amenable number.

1151326601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151326601 is an equidigital number, since it uses as much as digits as its factorization.

1151326601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1151326601 is about 33931.2039426838. The cubic root of 1151326601 is about 1048.0922580751.

The spelling of 1151326601 in words is "one billion, one hundred fifty-one million, three hundred twenty-six thousand, six hundred one".