149793122 has 4 divisors (see below), whose sum is σ = 224689686. Its totient is φ = 74896560.

The previous prime is 149793067. The next prime is 149793143. The reversal of 149793122 is 221397941.

149793122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 12239²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221397941 = 97 ⋅2282453.

It can be written as a sum of positive squares in only one way, i.e., 149793121 + 1 = 12239^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37448279 + ... + 37448282.

Almost surely, 2^149793122 is an apocalyptic number.

149793122 is a deficient number, since it is larger than the sum of its proper divisors (74896564).

149793122 is an equidigital number, since it uses as much as digits as its factorization.

149793122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74896563.

The product of its digits is 27216, while the sum is 38.

The square root of 149793122 is about 12239.0000408530. Note that the first 4 decimals coincide. The cubic root of 149793122 is about 531.0849047868.

The spelling of 149793122 in words is "one hundred forty-nine million, seven hundred ninety-three thousand, one hundred twenty-two".