1653251122 has 32 divisors (see below), whose sum is σ = 2660500080. Its totient is φ = 767754240.

The previous prime is 1653251113. The next prime is 1653251129. The reversal of 1653251122 is 2211523561.

It can be written as a sum of positive squares in 8 ways, for example, as 447703281 + 1205547841 = 21159^2 + 34721^2 .

It is not an unprimeable number, because it can be changed into a prime (1653251129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1876122 + ... + 1877002.

Almost surely, 2^1653251122 is an apocalyptic number.

1653251122 is a deficient number, since it is larger than the sum of its proper divisors (1007248958).

1653251122 is a wasteful number, since it uses less digits than its factorization.

1653251122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566.

The product of its digits is 3600, while the sum is 28.

The square root of 1653251122 is about 40660.1908751053. The cubic root of 1653251122 is about 1182.4413502759.

Adding to 1653251122 its reverse (2211523561), we get a palindrome (3864774683).

The spelling of 1653251122 in words is "one billion, six hundred fifty-three million, two hundred fifty-one thousand, one hundred twenty-two".