740252189 has 2 divisors, whose sum is σ = 740252190. Its totient is φ = 740252188.

The previous prime is 740252159. The next prime is 740252197. The reversal of 740252189 is 981252047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719848900 + 20403289 = 26830^2 + 4517^2 .

It is an emirp because it is prime and its reverse (981252047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740252189 - 2²⁰ = 739203613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740252119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370126094 + 370126095.

It is an arithmetic number, because the mean of its divisors is an integer number (370126095).

Almost surely, 2^740252189 is an apocalyptic number.

It is an amenable number.

740252189 is a deficient number, since it is larger than the sum of its proper divisors (1).

740252189 is an equidigital number, since it uses as much as digits as its factorization.

740252189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 740252189 is about 27207.5759486214. The cubic root of 740252189 is about 904.6069084323.

The spelling of 740252189 in words is "seven hundred forty million, two hundred fifty-two thousand, one hundred eighty-nine".