1651120153 has 4 divisors (see below), whose sum is σ = 1695745060. Its totient is φ = 1606495248.

The previous prime is 1651120151. The next prime is 1651120181. The reversal of 1651120153 is 3510211561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1399358464 + 251761689 = 37408^2 + 15867^2 .

It is a cyclic number.

It is not a de Polignac number, because 1651120153 - 2¹ = 1651120151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1651120151) 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, 22312398 + ... + 22312471.

It is an arithmetic number, because the mean of its divisors is an integer number (423936265).

Almost surely, 2^1651120153 is an apocalyptic number.

It is an amenable number.

1651120153 is a deficient number, since it is larger than the sum of its proper divisors (44624907).

1651120153 is an equidigital number, since it uses as much as digits as its factorization.

1651120153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44624906.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1651120153 is about 40633.9778141397. The cubic root of 1651120153 is about 1181.9330932990.

The spelling of 1651120153 in words is "one billion, six hundred fifty-one million, one hundred twenty thousand, one hundred fifty-three".