1651645232 has 10 divisors (see below), whose sum is σ = 3200062668. Its totient is φ = 825822608.

The previous prime is 1651645231. The next prime is 1651645241. The reversal of 1651645232 is 2325461561.

It is a junction number, because it is equal to n+sod(n) for n = 1651645192 and 1651645201.

It is not an unprimeable number, because it can be changed into a prime (1651645231) 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 as a sum of consecutive naturals, namely, 51613898 + ... + 51613929.

Almost surely, 2^1651645232 is an apocalyptic number.

It is an amenable number.

1651645232 is a deficient number, since it is larger than the sum of its proper divisors (1548417436).

1651645232 is a wasteful number, since it uses less digits than its factorization.

1651645232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103227835 (or 103227829 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 1651645232 is about 40640.4383834624. The cubic root of 1651645232 is about 1182.0583703661.

The spelling of 1651645232 in words is "one billion, six hundred fifty-one million, six hundred forty-five thousand, two hundred thirty-two".