34145389 has 2 divisors, whose sum is σ = 34145390. Its totient is φ = 34145388.

The previous prime is 34145357. The next prime is 34145399. The reversal of 34145389 is 98354143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29975625 + 4169764 = 5475^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 34145389 - 2⁵ = 34145357 is a prime.

It is a super-2 number, since 2×34145389² = 2331815179922642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34145399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17072694 + 17072695.

It is an arithmetic number, because the mean of its divisors is an integer number (17072695).

Almost surely, 2^34145389 is an apocalyptic number.

It is an amenable number.

34145389 is a deficient number, since it is larger than the sum of its proper divisors (1).

34145389 is an equidigital number, since it uses as much as digits as its factorization.

34145389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 34145389 is about 5843.4055994771. The cubic root of 34145389 is about 324.4222920394.

The spelling of 34145389 in words is "thirty-four million, one hundred forty-five thousand, three hundred eighty-nine".