653115442 has 16 divisors (see below), whose sum is σ = 1127802240. Its totient is φ = 277862688.

The previous prime is 653115377. The next prime is 653115509. The reversal of 653115442 is 244511356.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168342 + ... + 172177.

It is an arithmetic number, because the mean of its divisors is an integer number (70487640).

Almost surely, 2^653115442 is an apocalyptic number.

653115442 is a deficient number, since it is larger than the sum of its proper divisors (474686798).

653115442 is a wasteful number, since it uses less digits than its factorization.

653115442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340665.

The product of its digits is 14400, while the sum is 31.

The square root of 653115442 is about 25556.1233758174. The cubic root of 653115442 is about 867.6208579024.

Adding to 653115442 its reverse (244511356), we get a palindrome (897626798).

The spelling of 653115442 in words is "six hundred fifty-three million, one hundred fifteen thousand, four hundred forty-two".