189153545 has 16 divisors (see below), whose sum is σ = 260409600. Its totient is φ = 129205824.

The previous prime is 189153539. The next prime is 189153551. The reversal of 189153545 is 545351981.

It is an interprime number because it is at equal distance from previous prime (189153539) and next prime (189153551).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189153545 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070 + ... + 19479.

It is an arithmetic number, because the mean of its divisors is an integer number (16275600).

Almost surely, 2^189153545 is an apocalyptic number.

It is an amenable number.

189153545 is a deficient number, since it is larger than the sum of its proper divisors (71256055).

189153545 is a wasteful number, since it uses less digits than its factorization.

189153545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20824.

The product of its digits is 108000, while the sum is 41.

The square root of 189153545 is about 13753.3103287899. The cubic root of 189153545 is about 574.0347207121.

The spelling of 189153545 in words is "one hundred eighty-nine million, one hundred fifty-three thousand, five hundred forty-five".