1650120157 has 8 divisors (see below), whose sum is σ = 1893191616. Its totient is φ = 1408883712.

The previous prime is 1650120149. The next prime is 1650120161. The reversal of 1650120157 is 7510210561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1650120157 - 2³ = 1650120149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1650120107) 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, 456823 + ... + 460420.

It is an arithmetic number, because the mean of its divisors is an integer number (236648952).

Almost surely, 2^1650120157 is an apocalyptic number.

It is an amenable number.

1650120157 is a deficient number, since it is larger than the sum of its proper divisors (243071459).

1650120157 is an equidigital number, since it uses as much as digits as its factorization.

1650120157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917507.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 1650120157 is about 40621.6710266823. The cubic root of 1650120157 is about 1181.6944336928.

The spelling of 1650120157 in words is "one billion, six hundred fifty million, one hundred twenty thousand, one hundred fifty-seven".