1456064661 has 4 divisors (see below), whose sum is σ = 1941419552. Its totient is φ = 970709772.

The previous prime is 1456064651. The next prime is 1456064689. The reversal of 1456064661 is 1664606541.

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.

It is a de Polignac number, because none of the positive numbers 2^k-1456064661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456064651) 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, 242677441 + ... + 242677446.

It is an arithmetic number, because the mean of its divisors is an integer number (485354888).

Almost surely, 2^1456064661 is an apocalyptic number.

It is an amenable number.

1456064661 is a deficient number, since it is larger than the sum of its proper divisors (485354891).

1456064661 is an equidigital number, since it uses as much as digits as its factorization.

1456064661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485354890.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1456064661 is about 38158.4153365938. The cubic root of 1456064661 is about 1133.4269996307.

The spelling of 1456064661 in words is "one billion, four hundred fifty-six million, sixty-four thousand, six hundred sixty-one".