149788022 has 4 divisors (see below), whose sum is σ = 224682036. Its totient is φ = 74894010.

The previous prime is 149787997. The next prime is 149788031. The reversal of 149788022 is 220887941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220887941 = 53 ⋅4167697.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37447004 + ... + 37447007.

It is an arithmetic number, because the mean of its divisors is an integer number (56170509).

Almost surely, 2^149788022 is an apocalyptic number.

149788022 is a deficient number, since it is larger than the sum of its proper divisors (74894014).

149788022 is an equidigital number, since it uses as much as digits as its factorization.

149788022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74894013.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 149788022 is about 12238.7916887248. The cubic root of 149788022 is about 531.0788774434.

The spelling of 149788022 in words is "one hundred forty-nine million, seven hundred eighty-eight thousand, twenty-two".