149356447 has 4 divisors (see below), whose sum is σ = 149410800. Its totient is φ = 149302096.

The previous prime is 149356433. The next prime is 149356453. The reversal of 149356447 is 744653941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744653941 = 17 ⋅43803173.

It is a cyclic number.

It is not a de Polignac number, because 149356447 - 2²⁷ = 15138719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149356147) 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, 22822 + ... + 28627.

It is an arithmetic number, because the mean of its divisors is an integer number (37352700).

Almost surely, 2^149356447 is an apocalyptic number.

149356447 is a deficient number, since it is larger than the sum of its proper divisors (54353).

149356447 is an equidigital number, since it uses as much as digits as its factorization.

149356447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54352.

The product of its digits is 362880, while the sum is 43.

The square root of 149356447 is about 12221.1475320446. The cubic root of 149356447 is about 530.5683318437.

The spelling of 149356447 in words is "one hundred forty-nine million, three hundred fifty-six thousand, four hundred forty-seven".