189246313 has 2 divisors, whose sum is σ = 189246314. Its totient is φ = 189246312.

The previous prime is 189246301. The next prime is 189246331. The reversal of 189246313 is 313642981.

Together with next prime (189246331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124813584 + 64432729 = 11172^2 + 8027^2 .

It is a cyclic number.

It is not a de Polignac number, because 189246313 - 2⁹ = 189245801 is a prime.

It is a super-3 number, since 3×189246313³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (189246353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94623156 + 94623157.

It is an arithmetic number, because the mean of its divisors is an integer number (94623157).

Almost surely, 2^189246313 is an apocalyptic number.

It is an amenable number.

189246313 is a deficient number, since it is larger than the sum of its proper divisors (1).

189246313 is an equidigital number, since it uses as much as digits as its factorization.

189246313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 189246313 is about 13756.6824852506. The cubic root of 189246313 is about 574.1285481011.

It can be divided in two parts, 1892 and 46313, that added together give a triangular number (48205 = T₃₁₀).

The spelling of 189246313 in words is "one hundred eighty-nine million, two hundred forty-six thousand, three hundred thirteen".