1630117745 has 8 divisors (see below), whose sum is σ = 2001633216. Its totient is φ = 1273766256.

The previous prime is 1630117739. The next prime is 1630117751. The reversal of 1630117745 is 5477110361.

It is an interprime number because it is at equal distance from previous prime (1630117739) and next prime (1630117751).

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 1630117745 - 2²² = 1625923441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3790757 + ... + 3791186.

It is an arithmetic number, because the mean of its divisors is an integer number (250204152).

Almost surely, 2^1630117745 is an apocalyptic number.

It is an amenable number.

1630117745 is a deficient number, since it is larger than the sum of its proper divisors (371515471).

1630117745 is an equidigital number, since it uses as much as digits as its factorization.

1630117745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7581991.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 1630117745 is about 40374.7166553525. The cubic root of 1630117745 is about 1176.9002588010.

The spelling of 1630117745 in words is "one billion, six hundred thirty million, one hundred seventeen thousand, seven hundred forty-five".