1630083645 has 12 divisors (see below), whose sum is σ = 2825478396. Its totient is φ = 869377920.

The previous prime is 1630083629. The next prime is 1630083661. The reversal of 1630083645 is 5463800361.

1630083645 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 0 + 8 + 3 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (1630083629) and next prime (1630083661).

It can be written as a sum of positive squares in 2 ways, for example, as 273340089 + 1356743556 = 16533^2 + 36834^2 .

It is not a de Polignac number, because 1630083645 - 2⁴ = 1630083629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18111996 + ... + 18112085.

It is an arithmetic number, because the mean of its divisors is an integer number (235456533).

Almost surely, 2^1630083645 is an apocalyptic number.

1630083645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1630083645 is a deficient number, since it is larger than the sum of its proper divisors (1195394751).

1630083645 is a wasteful number, since it uses less digits than its factorization.

1630083645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36224092 (or 36224089 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1630083645 is about 40374.2943591588. The cubic root of 1630083645 is about 1176.8920523225.

The spelling of 1630083645 in words is "one billion, six hundred thirty million, eighty-three thousand, six hundred forty-five".