189345515 has 8 divisors (see below), whose sum is σ = 228357600. Its totient is φ = 150714432.

The previous prime is 189345479. The next prime is 189345517. The reversal of 189345515 is 515543981.

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

It is a cyclic number.

It is not a de Polignac number, because 189345515 - 2¹² = 189341419 is a prime.

It is a super-3 number, since 3×189345515³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (189345517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94154 + ... + 96143.

It is an arithmetic number, because the mean of its divisors is an integer number (28544700).

Almost surely, 2^189345515 is an apocalyptic number.

189345515 is a deficient number, since it is larger than the sum of its proper divisors (39012085).

189345515 is a wasteful number, since it uses less digits than its factorization.

189345515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190501.

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

The square root of 189345515 is about 13760.2876060059. The cubic root of 189345515 is about 574.2288490448.

The spelling of 189345515 in words is "one hundred eighty-nine million, three hundred forty-five thousand, five hundred fifteen".