189154130 has 16 divisors (see below), whose sum is σ = 371430144. Its totient is φ = 68783280.

The previous prime is 189154129. The next prime is 189154151. The reversal of 189154130 is 31451981.

It is a Curzon 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, 859682 + ... + 859901.

It is an arithmetic number, because the mean of its divisors is an integer number (23214384).

Almost surely, 2^189154130 is an apocalyptic number.

189154130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189154130 is a deficient number, since it is larger than the sum of its proper divisors (182276014).

189154130 is a wasteful number, since it uses less digits than its factorization.

189154130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719601.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 189154130 is about 13753.3315963806. The cubic root of 189154130 is about 574.0353124888.

The spelling of 189154130 in words is "one hundred eighty-nine million, one hundred fifty-four thousand, one hundred thirty".