149728142 has 8 divisors (see below), whose sum is σ = 224652432. Its totient is φ = 74844000.

The previous prime is 149728141. The next prime is 149728169. The reversal of 149728142 is 241827941.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 149728096 and 149728105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149728141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342 + ... + 17462.

It is an arithmetic number, because the mean of its divisors is an integer number (28081554).

Almost surely, 2^149728142 is an apocalyptic number.

149728142 is a deficient number, since it is larger than the sum of its proper divisors (74924290).

149728142 is a wasteful number, since it uses less digits than its factorization.

149728142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20074.

The product of its digits is 32256, while the sum is 38.

The square root of 149728142 is about 12236.3451242599. The cubic root of 149728142 is about 531.0080991053.

The spelling of 149728142 in words is "one hundred forty-nine million, seven hundred twenty-eight thousand, one hundred forty-two".