1956459601 has 4 divisors (see below), whose sum is σ = 1956550000. Its totient is φ = 1956369204.

The previous prime is 1956459541. The next prime is 1956459613. The reversal of 1956459601 is 1069546591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1956459601 - 2⁷ = 1956459473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1956459691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8650 + ... + 63148.

It is an arithmetic number, because the mean of its divisors is an integer number (489137500).

Almost surely, 2^1956459601 is an apocalyptic number.

It is an amenable number.

1956459601 is a deficient number, since it is larger than the sum of its proper divisors (90399).

1956459601 is an equidigital number, since it uses as much as digits as its factorization.

1956459601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90398.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 1956459601 is about 44231.8844387168. The cubic root of 1956459601 is about 1250.7109770793.

The spelling of 1956459601 in words is "one billion, nine hundred fifty-six million, four hundred fifty-nine thousand, six hundred one".