1485599721 has 8 divisors (see below), whose sum is σ = 2085052320. Its totient is φ = 938273472.

The previous prime is 1485599707. The next prime is 1485599729. The reversal of 1485599721 is 1279955841.

1485599721 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1485599721 - 2²² = 1481405417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1485599729) 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, 13031520 + ... + 13031633.

It is an arithmetic number, because the mean of its divisors is an integer number (260631540).

Almost surely, 2^1485599721 is an apocalyptic number.

It is an amenable number.

1485599721 is a deficient number, since it is larger than the sum of its proper divisors (599452599).

1485599721 is a wasteful number, since it uses less digits than its factorization.

1485599721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26063175.

The product of its digits is 907200, while the sum is 51.

The square root of 1485599721 is about 38543.4783199441. The cubic root of 1485599721 is about 1141.0393007535.

The spelling of 1485599721 in words is "one billion, four hundred eighty-five million, five hundred ninety-nine thousand, seven hundred twenty-one".