146922569 has 2 divisors, whose sum is σ = 146922570. Its totient is φ = 146922568.

The previous prime is 146922553. The next prime is 146922623. The reversal of 146922569 is 965229641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112254025 + 34668544 = 10595^2 + 5888^2 .

It is a cyclic number.

It is not a de Polignac number, because 146922569 - 2⁴ = 146922553 is a prime.

It is a super-2 number, since 2×146922569² = 43172482563119522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146922509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73461284 + 73461285.

It is an arithmetic number, because the mean of its divisors is an integer number (73461285).

Almost surely, 2^146922569 is an apocalyptic number.

It is an amenable number.

146922569 is a deficient number, since it is larger than the sum of its proper divisors (1).

146922569 is an equidigital number, since it uses as much as digits as its factorization.

146922569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 146922569 is about 12121.1620317526. The cubic root of 146922569 is about 527.6705275880.

The spelling of 146922569 in words is "one hundred forty-six million, nine hundred twenty-two thousand, five hundred sixty-nine".