1913653201 has 2 divisors, whose sum is σ = 1913653202. Its totient is φ = 1913653200.

The previous prime is 1913653193. The next prime is 1913653207. The reversal of 1913653201 is 1023563191.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1776201025 + 137452176 = 42145^2 + 11724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1913653201 - 2³ = 1913653193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1913653207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956826600 + 956826601.

It is an arithmetic number, because the mean of its divisors is an integer number (956826601).

Almost surely, 2^1913653201 is an apocalyptic number.

It is an amenable number.

1913653201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1913653201 is an equidigital number, since it uses as much as digits as its factorization.

1913653201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1913653201 is about 43745.3220470486. The cubic root of 1913653201 is about 1241.5219780616.

The spelling of 1913653201 in words is "one billion, nine hundred thirteen million, six hundred fifty-three thousand, two hundred one".