1474758721 has 8 divisors (see below), whose sum is σ = 1615354920. Its totient is φ = 1340145408.

The previous prime is 1474758713. The next prime is 1474758731. The reversal of 1474758721 is 1278574741.

It can be written as a sum of positive squares in 4 ways, for example, as 877640625 + 597118096 = 29625^2 + 24436^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1474758721 - 2³ = 1474758713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1474758731) 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, 1495206 + ... + 1496191.

It is an arithmetic number, because the mean of its divisors is an integer number (201919365).

Almost surely, 2^1474758721 is an apocalyptic number.

It is an amenable number.

1474758721 is a deficient number, since it is larger than the sum of its proper divisors (140596199).

1474758721 is a wasteful number, since it uses less digits than its factorization.

1474758721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991443.

The product of its digits is 439040, while the sum is 46.

The square root of 1474758721 is about 38402.5874258493. The cubic root of 1474758721 is about 1138.2569857386.

The spelling of 1474758721 in words is "one billion, four hundred seventy-four million, seven hundred fifty-eight thousand, seven hundred twenty-one".