1461140657 has 8 divisors (see below), whose sum is σ = 1499269632. Its totient is φ = 1423130400.

The previous prime is 1461140651. The next prime is 1461140671. The reversal of 1461140657 is 7560411641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1461140657 - 2¹⁰ = 1461139633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1461140651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4469 + ... + 54242.

It is an arithmetic number, because the mean of its divisors is an integer number (187408704).

Almost surely, 2^1461140657 is an apocalyptic number.

It is an amenable number.

1461140657 is a deficient number, since it is larger than the sum of its proper divisors (38128975).

1461140657 is an equidigital number, since it uses as much as digits as its factorization.

1461140657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59359.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1461140657 is about 38224.8696139045. The cubic root of 1461140657 is about 1134.7425543777.

The spelling of 1461140657 in words is "one billion, four hundred sixty-one million, one hundred forty thousand, six hundred fifty-seven".