189393351 has 16 divisors (see below), whose sum is σ = 289845504. Its totient is φ = 107757504.

The previous prime is 189393329. The next prime is 189393367. The reversal of 189393351 is 153393981.

It is a happy number.

It is not a de Polignac number, because 189393351 - 2⁷ = 189393223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189393551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14461 + ... + 24246.

It is an arithmetic number, because the mean of its divisors is an integer number (18115344).

Almost surely, 2^189393351 is an apocalyptic number.

189393351 is a deficient number, since it is larger than the sum of its proper divisors (100452153).

189393351 is a wasteful number, since it uses less digits than its factorization.

189393351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38950.

The product of its digits is 87480, while the sum is 42.

The square root of 189393351 is about 13762.0256866495. The cubic root of 189393351 is about 574.2772024449.

The spelling of 189393351 in words is "one hundred eighty-nine million, three hundred ninety-three thousand, three hundred fifty-one".