189214733 has 2 divisors, whose sum is σ = 189214734. Its totient is φ = 189214732.

The previous prime is 189214693. The next prime is 189214747. The reversal of 189214733 is 337412981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149499529 + 39715204 = 12227^2 + 6302^2 .

It is an emirp because it is prime and its reverse (337412981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189214733 is a prime.

It is a super-2 number, since 2×189214733² = 71604430368522578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189214033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94607366 + 94607367.

It is an arithmetic number, because the mean of its divisors is an integer number (94607367).

Almost surely, 2^189214733 is an apocalyptic number.

It is an amenable number.

189214733 is a deficient number, since it is larger than the sum of its proper divisors (1).

189214733 is an equidigital number, since it uses as much as digits as its factorization.

189214733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 189214733 is about 13755.5346315583. The cubic root of 189214733 is about 574.0966109079.

The spelling of 189214733 in words is "one hundred eighty-nine million, two hundred fourteen thousand, seven hundred thirty-three".