1461721514 has 8 divisors (see below), whose sum is σ = 2391907968. Its totient is φ = 664418860.

The previous prime is 1461721511. The next prime is 1461721529. The reversal of 1461721514 is 4151271641.

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

It is not an unprimeable number, because it can be changed into a prime (1461721511) 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 3 ways as a sum of consecutive naturals, for example, 33220922 + ... + 33220965.

It is an arithmetic number, because the mean of its divisors is an integer number (298988496).

Almost surely, 2^1461721514 is an apocalyptic number.

1461721514 is a deficient number, since it is larger than the sum of its proper divisors (930186454).

1461721514 is a wasteful number, since it uses less digits than its factorization.

1461721514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66441900.

The product of its digits is 6720, while the sum is 32.

The square root of 1461721514 is about 38232.4667527482. The cubic root of 1461721514 is about 1134.8929017177.

The spelling of 1461721514 in words is "one billion, four hundred sixty-one million, seven hundred twenty-one thousand, five hundred fourteen".