1461340681 has 16 divisors (see below), whose sum is σ = 1513378944. Its totient is φ = 1410240384.

The previous prime is 1461340679. The next prime is 1461340691. The reversal of 1461340681 is 1860431641.

It is not a de Polignac number, because 1461340681 - 2¹ = 1461340679 is a prime.

It is a super-2 number, since 2×1461340681² = 4271033171891087522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461340691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414141 + ... + 1415173.

It is an arithmetic number, because the mean of its divisors is an integer number (94586184).

Almost surely, 2^1461340681 is an apocalyptic number.

It is an amenable number.

1461340681 is a deficient number, since it is larger than the sum of its proper divisors (52038263).

1461340681 is a wasteful number, since it uses less digits than its factorization.

1461340681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1461340681 is about 38227.4859361690. The cubic root of 1461340681 is about 1134.7943325067.

The spelling of 1461340681 in words is "one billion, four hundred sixty-one million, three hundred forty thousand, six hundred eighty-one".