990152641 has 16 divisors (see below), whose sum is σ = 1064456640. Its totient is φ = 917739520.

The previous prime is 990152633. The next prime is 990152659. The reversal of 990152641 is 146251099.

It is a cyclic number.

It is not a de Polignac number, because 990152641 - 2³ = 990152633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 990152641.

It is not an unprimeable number, because it can be changed into a prime (990152341) 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, 324081 + ... + 327121.

It is an arithmetic number, because the mean of its divisors is an integer number (66528540).

Almost surely, 2^990152641 is an apocalyptic number.

It is an amenable number.

990152641 is a deficient number, since it is larger than the sum of its proper divisors (74303999).

990152641 is a wasteful number, since it uses less digits than its factorization.

990152641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 990152641 is about 31466.6909763324. The cubic root of 990152641 is about 996.7067131679.

The spelling of 990152641 in words is "nine hundred ninety million, one hundred fifty-two thousand, six hundred forty-one".