149294569 has 2 divisors, whose sum is σ = 149294570. Its totient is φ = 149294568.

The previous prime is 149294501. The next prime is 149294623. The reversal of 149294569 is 965492941.

149294569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112084569 + 37210000 = 10587^2 + 6100^2 .

It is a cyclic number.

It is not a de Polignac number, because 149294569 - 2¹³ = 149286377 is a prime.

It is a super-2 number, since 2×149294569² = 44577736665791522, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (149294069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74647284 + 74647285.

It is an arithmetic number, because the mean of its divisors is an integer number (74647285).

Almost surely, 2^149294569 is an apocalyptic number.

It is an amenable number.

149294569 is a deficient number, since it is larger than the sum of its proper divisors (1).

149294569 is an equidigital number, since it uses as much as digits as its factorization.

149294569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 49.

The square root of 149294569 is about 12218.6156744535. The cubic root of 149294569 is about 530.4950506813.

The spelling of 149294569 in words is "one hundred forty-nine million, two hundred ninety-four thousand, five hundred sixty-nine".