1630172099 has 8 divisors (see below), whose sum is σ = 1692804960. Its totient is φ = 1567967296.

The previous prime is 1630172087. The next prime is 1630172171. The reversal of 1630172099 is 9902710361.

It is a happy number.

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 1630172099 - 2⁸ = 1630171843 is a prime.

It is a super-2 number, since 2×1630172099² = 5314922144716131602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1630172029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99242 + ... + 114495.

It is an arithmetic number, because the mean of its divisors is an integer number (211600620).

Almost surely, 2^1630172099 is an apocalyptic number.

1630172099 is a deficient number, since it is larger than the sum of its proper divisors (62632861).

1630172099 is a wasteful number, since it uses less digits than its factorization.

1630172099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214029.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1630172099 is about 40375.3897690165. The cubic root of 1630172099 is about 1176.9133393542.

The spelling of 1630172099 in words is "one billion, six hundred thirty million, one hundred seventy-two thousand, ninety-nine".