149938942 has 8 divisors (see below), whose sum is σ = 228720600. Its totient is φ = 73698744.

The previous prime is 149938931. The next prime is 149938967. The reversal of 149938942 is 249839941.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635217 + ... + 635452.

It is an arithmetic number, because the mean of its divisors is an integer number (28590075).

Almost surely, 2^149938942 is an apocalyptic number.

149938942 is a deficient number, since it is larger than the sum of its proper divisors (78781658).

149938942 is a wasteful number, since it uses less digits than its factorization.

149938942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270730.

The product of its digits is 559872, while the sum is 49.

The square root of 149938942 is about 12244.9557777887. The cubic root of 149938942 is about 531.2571816884.

Subtracting 149938942 from its reverse (249839941), we obtain a palindrome (99900999).

The spelling of 149938942 in words is "one hundred forty-nine million, nine hundred thirty-eight thousand, nine hundred forty-two".