189349031 has 2 divisors, whose sum is σ = 189349032. Its totient is φ = 189349030.

The previous prime is 189349021. The next prime is 189349073. The reversal of 189349031 is 130943981.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189349031 - 2⁶ = 189348967 is a prime.

It is a super-2 number, since 2×189349031² = 71706111081277922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189349021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94674515 + 94674516.

It is an arithmetic number, because the mean of its divisors is an integer number (94674516).

Almost surely, 2^189349031 is an apocalyptic number.

189349031 is a deficient number, since it is larger than the sum of its proper divisors (1).

189349031 is an equidigital number, since it uses as much as digits as its factorization.

189349031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 189349031 is about 13760.4153643704. The cubic root of 189349031 is about 574.2324033515.

The spelling of 189349031 in words is "one hundred eighty-nine million, three hundred forty-nine thousand, thirty-one".