149221446 has 32 divisors (see below), whose sum is σ = 326111616. Its totient is φ = 45144000.

The previous prime is 149221379. The next prime is 149221453. The reversal of 149221446 is 644122941.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48741 + ... + 51711.

It is an arithmetic number, because the mean of its divisors is an integer number (10190988).

Almost surely, 2^149221446 is an apocalyptic number.

149221446 is an abundant number, since it is smaller than the sum of its proper divisors (176890170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149221446 is a wasteful number, since it uses less digits than its factorization.

149221446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748.

The product of its digits is 13824, while the sum is 33.

The square root of 149221446 is about 12215.6230295470. The cubic root of 149221446 is about 530.4084261314.

The spelling of 149221446 in words is "one hundred forty-nine million, two hundred twenty-one thousand, four hundred forty-six".