149909944 has 16 divisors (see below), whose sum is σ = 297615600. Its totient is φ = 70545792.

The previous prime is 149909941. The next prime is 149909951. The reversal of 149909944 is 449909941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149909941) 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, 551004 + ... + 551275.

It is an arithmetic number, because the mean of its divisors is an integer number (18600975).

Almost surely, 2^149909944 is an apocalyptic number.

It is an amenable number.

149909944 is a deficient number, since it is larger than the sum of its proper divisors (147705656).

149909944 is a wasteful number, since it uses less digits than its factorization.

149909944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102302 (or 1102298 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 149909944 is about 12243.7716411243. The cubic root of 149909944 is about 531.2229313267. Note that the first 3 decimals are identical.

The spelling of 149909944 in words is "one hundred forty-nine million, nine hundred nine thousand, nine hundred forty-four".