149121254 has 4 divisors (see below), whose sum is σ = 223681884. Its totient is φ = 74560626.

The previous prime is 149121209. The next prime is 149121281. The reversal of 149121254 is 452121941.

149121254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

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, 37280312 + ... + 37280315.

It is an arithmetic number, because the mean of its divisors is an integer number (55920471).

Almost surely, 2^149121254 is an apocalyptic number.

149121254 is a deficient number, since it is larger than the sum of its proper divisors (74560630).

149121254 is an equidigital number, since it uses as much as digits as its factorization.

149121254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74560629.

The product of its digits is 2880, while the sum is 29.

The square root of 149121254 is about 12211.5213630407. The cubic root of 149121254 is about 530.2896885532.

The spelling of 149121254 in words is "one hundred forty-nine million, one hundred twenty-one thousand, two hundred fifty-four".