1650016931 has 4 divisors (see below), whose sum is σ = 1650149712. Its totient is φ = 1649884152.

The previous prime is 1650016913. The next prime is 1650016939. The reversal of 1650016931 is 1396100561.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1650016931 is a prime.

It is a super-2 number, since 2×1650016931² = 5445111745173317522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1650016939) 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 3 ways as a sum of consecutive naturals, for example, 45575 + ... + 73328.

It is an arithmetic number, because the mean of its divisors is an integer number (412537428).

Almost surely, 2^1650016931 is an apocalyptic number.

1650016931 is a deficient number, since it is larger than the sum of its proper divisors (132781).

1650016931 is a wasteful number, since it uses less digits than its factorization.

1650016931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132780.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 1650016931 is about 40620.4004288486. The cubic root of 1650016931 is about 1181.6697922280.

The spelling of 1650016931 in words is "one billion, six hundred fifty million, sixteen thousand, nine hundred thirty-one".