149056459 has 4 divisors (see below), whose sum is σ = 157824504. Its totient is φ = 140288416.

The previous prime is 149056451. The next prime is 149056487. The reversal of 149056459 is 954650941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954650941 = 11833 ⋅80677.

It is a cyclic number.

It is not a de Polignac number, because 149056459 - 2³ = 149056451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149056451) 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, 4383997 + ... + 4384030.

It is an arithmetic number, because the mean of its divisors is an integer number (39456126).

Almost surely, 2^149056459 is an apocalyptic number.

149056459 is a deficient number, since it is larger than the sum of its proper divisors (8768045).

149056459 is an equidigital number, since it uses as much as digits as its factorization.

149056459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8768044.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 149056459 is about 12208.8680474481. The cubic root of 149056459 is about 530.2128716513.

The spelling of 149056459 in words is "one hundred forty-nine million, fifty-six thousand, four hundred fifty-nine".