189381532 has 6 divisors (see below), whose sum is σ = 331417688. Its totient is φ = 94690764.

The previous prime is 189381509. The next prime is 189381541. The reversal of 189381532 is 235183981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23672688 + ... + 23672695.

Almost surely, 2^189381532 is an apocalyptic number.

It is an amenable number.

189381532 is a deficient number, since it is larger than the sum of its proper divisors (142036156).

189381532 is a wasteful number, since it uses less digits than its factorization.

189381532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47345387 (or 47345385 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 189381532 is about 13761.5962736886. The cubic root of 189381532 is about 574.2652563665.

The spelling of 189381532 in words is "one hundred eighty-nine million, three hundred eighty-one thousand, five hundred thirty-two".