1461351651 has 4 divisors (see below), whose sum is σ = 1948468872. Its totient is φ = 974234432.

The previous prime is 1461351649. The next prime is 1461351653. The reversal of 1461351651 is 1561531641.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1461351649) and next prime (1461351653).

It is a cyclic number.

It is not a de Polignac number, because 1461351651 - 2¹ = 1461351649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1461351653) 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 3 ways as a sum of consecutive naturals, for example, 243558606 + ... + 243558611.

It is an arithmetic number, because the mean of its divisors is an integer number (487117218).

Almost surely, 2^1461351651 is an apocalyptic number.

1461351651 is a deficient number, since it is larger than the sum of its proper divisors (487117221).

1461351651 is an equidigital number, since it uses as much as digits as its factorization.

1461351651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487117220.

The product of its digits is 10800, while the sum is 33.

The square root of 1461351651 is about 38227.6294190472. The cubic root of 1461351651 is about 1134.7971720596.

The spelling of 1461351651 in words is "one billion, four hundred sixty-one million, three hundred fifty-one thousand, six hundred fifty-one".