1472528621 has 8 divisors (see below), whose sum is σ = 1524109080. Its totient is φ = 1421001792.

The previous prime is 1472528597. The next prime is 1472528641. The reversal of 1472528621 is 1268252741.

It can be written as a sum of positive squares in 4 ways, for example, as 25867396 + 1446661225 = 5086^2 + 38035^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1472528621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1472528641) 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, 47171 + ... + 71903.

It is an arithmetic number, because the mean of its divisors is an integer number (190513635).

Almost surely, 2^1472528621 is an apocalyptic number.

It is an amenable number.

1472528621 is a deficient number, since it is larger than the sum of its proper divisors (51580459).

1472528621 is a wasteful number, since it uses less digits than its factorization.

1472528621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26815.

The product of its digits is 53760, while the sum is 38.

The square root of 1472528621 is about 38373.5406367460. The cubic root of 1472528621 is about 1137.6829466404.

The spelling of 1472528621 in words is "one billion, four hundred seventy-two million, five hundred twenty-eight thousand, six hundred twenty-one".