149228774 has 8 divisors (see below), whose sum is σ = 235624440. Its totient is φ = 70687296.

The previous prime is 149228773. The next prime is 149228801. The reversal of 149228774 is 477822941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149228773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963499 + ... + 1963574.

It is an arithmetic number, because the mean of its divisors is an integer number (29453055).

Almost surely, 2^149228774 is an apocalyptic number.

149228774 is a deficient number, since it is larger than the sum of its proper divisors (86395666).

149228774 is a wasteful number, since it uses less digits than its factorization.

149228774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927094.

The product of its digits is 225792, while the sum is 44.

The square root of 149228774 is about 12215.9229696327. The cubic root of 149228774 is about 530.4171084610.

The spelling of 149228774 in words is "one hundred forty-nine million, two hundred twenty-eight thousand, seven hundred seventy-four".