149965469 has 2 divisors, whose sum is σ = 149965470. Its totient is φ = 149965468.

The previous prime is 149965457. The next prime is 149965481. The reversal of 149965469 is 964569941.

It is a balanced prime because it is at equal distance from previous prime (149965457) and next prime (149965481).

It can be written as a sum of positive squares in only one way, i.e., 78765625 + 71199844 = 8875^2 + 8438^2 .

It is a cyclic number.

It is not a de Polignac number, because 149965469 - 2⁸ = 149965213 is a prime.

It is a super-2 number, since 2×149965469² = 44979283784779922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149965469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149965489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74982734 + 74982735.

It is an arithmetic number, because the mean of its divisors is an integer number (74982735).

Almost surely, 2^149965469 is an apocalyptic number.

It is an amenable number.

149965469 is a deficient number, since it is larger than the sum of its proper divisors (1).

149965469 is an equidigital number, since it uses as much as digits as its factorization.

149965469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 53.

The square root of 149965469 is about 12246.0389106029. The cubic root of 149965469 is about 531.2885096144.

The spelling of 149965469 in words is "one hundred forty-nine million, nine hundred sixty-five thousand, four hundred sixty-nine".