1461540656 has 10 divisors (see below), whose sum is σ = 2831735052. Its totient is φ = 730770320.

The previous prime is 1461540617. The next prime is 1461540673. The reversal of 1461540656 is 6560451641.

It is a happy number.

It is a super-2 number, since 2×1461540656² = 4272202178281820672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45673130 + ... + 45673161.

Almost surely, 2^1461540656 is an apocalyptic number.

1461540656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1461540656 is a deficient number, since it is larger than the sum of its proper divisors (1370194396).

1461540656 is an equidigital number, since it uses as much as digits as its factorization.

1461540656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91346299 (or 91346293 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1461540656 is about 38230.1014385262. The cubic root of 1461540656 is about 1134.8460932286.

The spelling of 1461540656 in words is "one billion, four hundred sixty-one million, five hundred forty thousand, six hundred fifty-six".