189198351 has 12 divisors (see below), whose sum is σ = 275993640. Its totient is φ = 124882800.

The previous prime is 189198341. The next prime is 189198367. The reversal of 189198351 is 153891981.

189198351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189198351 - 2⁷ = 189198223 is a prime.

It is a super-2 number, since 2×189198351² = 71592032042238402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189198297 and 189198306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189198311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103161 + ... + 104978.

It is an arithmetic number, because the mean of its divisors is an integer number (22999470).

Almost surely, 2^189198351 is an apocalyptic number.

189198351 is a deficient number, since it is larger than the sum of its proper divisors (86795289).

189198351 is a wasteful number, since it uses less digits than its factorization.

189198351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208246 (or 208243 counting only the distinct ones).

The product of its digits is 77760, while the sum is 45.

The square root of 189198351 is about 13754.9391492656. The cubic root of 189198351 is about 574.0800422156.

The spelling of 189198351 in words is "one hundred eighty-nine million, one hundred ninety-eight thousand, three hundred fifty-one".