1461424643 has 8 divisors (see below), whose sum is σ = 1677494880. Its totient is φ = 1247178240.

The previous prime is 1461424571. The next prime is 1461424649. The reversal of 1461424643 is 3464241641.

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

It is not a de Polignac number, because 1461424643 - 2²² = 1457230339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461424649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454238 + ... + 457443.

It is an arithmetic number, because the mean of its divisors is an integer number (209686860).

Almost surely, 2^1461424643 is an apocalyptic number.

1461424643 is a deficient number, since it is larger than the sum of its proper divisors (216070237).

1461424643 is an equidigital number, since it uses as much as digits as its factorization.

1461424643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911917.

The product of its digits is 55296, while the sum is 35.

The square root of 1461424643 is about 38228.5841092761. The cubic root of 1461424643 is about 1134.8160654670.

The spelling of 1461424643 in words is "one billion, four hundred sixty-one million, four hundred twenty-four thousand, six hundred forty-three".