149456069 has 4 divisors (see below), whose sum is σ = 170806944. Its totient is φ = 128105196.

The previous prime is 149456057. The next prime is 149456101. The reversal of 149456069 is 960654941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149456069 - 2¹⁶ = 149390533 is a prime.

It is a super-2 number, since 2×149456069² = 44674233121865522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149456269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10675427 + ... + 10675440.

It is an arithmetic number, because the mean of its divisors is an integer number (42701736).

Almost surely, 2^149456069 is an apocalyptic number.

It is an amenable number.

149456069 is a deficient number, since it is larger than the sum of its proper divisors (21350875).

149456069 is an equidigital number, since it uses as much as digits as its factorization.

149456069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21350874.

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

The square root of 149456069 is about 12225.2226564591. Note that the first 3 decimals coincide. The cubic root of 149456069 is about 530.6862701314.

The spelling of 149456069 in words is "one hundred forty-nine million, four hundred fifty-six thousand, sixty-nine".