1052170999 has 48 divisors (see below), whose sum is σ = 1287031680. Its totient is φ = 849925440.

The previous prime is 1052170967. The next prime is 1052171033. The reversal of 1052170999 is 9990712501.

It is not a de Polignac number, because 1052170999 - 2⁵ = 1052170967 is a prime.

It is a super-2 number, since 2×1052170999² = 2214127622273316002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052170799) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19852257 + ... + 19852309.

It is an arithmetic number, because the mean of its divisors is an integer number (26813160).

Almost surely, 2^1052170999 is an apocalyptic number.

1052170999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1052170999 is a deficient number, since it is larger than the sum of its proper divisors (234860681).

1052170999 is a wasteful number, since it uses less digits than its factorization.

1052170999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 1052170999 is about 32437.1854358543. The cubic root of 1052170999 is about 1017.0963810751.

The spelling of 1052170999 in words is "one billion, fifty-two million, one hundred seventy thousand, nine hundred ninety-nine".