189001270 has 8 divisors (see below), whose sum is σ = 340202304. Its totient is φ = 75600504.

The previous prime is 189001247. The next prime is 189001279. The reversal of 189001270 is 72100981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×189001270² = 71442960123225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189001279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9450054 + ... + 9450073.

It is an arithmetic number, because the mean of its divisors is an integer number (42525288).

Almost surely, 2^189001270 is an apocalyptic number.

189001270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189001270 is a deficient number, since it is larger than the sum of its proper divisors (151201034).

189001270 is a wasteful number, since it uses less digits than its factorization.

189001270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18900134.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 189001270 is about 13747.7732742434. The cubic root of 189001270 is about 573.8806402376.

The spelling of 189001270 in words is "one hundred eighty-nine million, one thousand, two hundred seventy".