149297069 has 4 divisors (see below), whose sum is σ = 150618396. Its totient is φ = 147975744.

The previous prime is 149297063. The next prime is 149297129. The reversal of 149297069 is 960792941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 960792941 = 47 ⋅20442403.

It can be written as a sum of positive squares in 2 ways, for example, as 50055625 + 99241444 = 7075^2 + 9962^2 .

It is a cyclic number.

It is not a de Polignac number, because 149297069 - 2¹² = 149292973 is a prime.

It is a super-2 number, since 2×149297069² = 44579229623981522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149297063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660494 + ... + 660719.

It is an arithmetic number, because the mean of its divisors is an integer number (37654599).

Almost surely, 2^149297069 is an apocalyptic number.

It is an amenable number.

149297069 is a deficient number, since it is larger than the sum of its proper divisors (1321327).

149297069 is a wasteful number, since it uses less digits than its factorization.

149297069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321326.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 149297069 is about 12218.7179769401. The cubic root of 149297069 is about 530.4980117853.

The spelling of 149297069 in words is "one hundred forty-nine million, two hundred ninety-seven thousand, sixty-nine".