1653901159 has 4 divisors (see below), whose sum is σ = 1670276520. Its totient is φ = 1637525800.

The previous prime is 1653901133. The next prime is 1653901163. The reversal of 1653901159 is 9511093561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9511093561 = 23 ⋅413525807.

It is a cyclic number.

It is not a de Polignac number, because 1653901159 - 2⁷ = 1653901031 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1653901129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8187529 + ... + 8187730.

It is an arithmetic number, because the mean of its divisors is an integer number (417569130).

Almost surely, 2^1653901159 is an apocalyptic number.

1653901159 is a deficient number, since it is larger than the sum of its proper divisors (16375361).

1653901159 is a wasteful number, since it uses less digits than its factorization.

1653901159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16375360.

The product of its (nonzero) digits is 36450, while the sum is 40.

The square root of 1653901159 is about 40668.1836206143. The cubic root of 1653901159 is about 1182.5963035275.

The spelling of 1653901159 in words is "one billion, six hundred fifty-three million, nine hundred one thousand, one hundred fifty-nine".