1539653452 has 24 divisors (see below), whose sum is σ = 2725461536. Its totient is φ = 760969728.

The previous prime is 1539653441. The next prime is 1539653459. The reversal of 1539653452 is 2543569351.

It is a junction number, because it is equal to n+sod(n) for n = 1539653399 and 1539653408.

It is not an unprimeable number, because it can be changed into a prime (1539653459) 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, 410578 + ... + 414310.

Almost surely, 2^1539653452 is an apocalyptic number.

It is an amenable number.

1539653452 is a deficient number, since it is larger than the sum of its proper divisors (1185808084).

1539653452 is a wasteful number, since it uses less digits than its factorization.

1539653452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897 (or 4895 counting only the distinct ones).

The product of its digits is 486000, while the sum is 43.

The square root of 1539653452 is about 39238.4180618944. The cubic root of 1539653452 is about 1154.7137217690.

The spelling of 1539653452 in words is "one billion, five hundred thirty-nine million, six hundred fifty-three thousand, four hundred fifty-two".