189852971 has 16 divisors (see below), whose sum is σ = 246993408. Its totient is φ = 141504000.

The previous prime is 189852961. The next prime is 189852977. The reversal of 189852971 is 179258981.

It is not a de Polignac number, because 189852971 - 2¹⁴ = 189836587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189852977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51830 + ... + 55371.

It is an arithmetic number, because the mean of its divisors is an integer number (15437088).

Almost surely, 2^189852971 is an apocalyptic number.

189852971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

189852971 is a deficient number, since it is larger than the sum of its proper divisors (57140437).

189852971 is a wasteful number, since it uses less digits than its factorization.

189852971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107242.

The product of its digits is 362880, while the sum is 50.

The square root of 189852971 is about 13778.7144175355. The cubic root of 189852971 is about 574.7413793485.

The spelling of 189852971 in words is "one hundred eighty-nine million, eight hundred fifty-two thousand, nine hundred seventy-one".