149983394 has 16 divisors (see below), whose sum is σ = 253345536. Its totient is φ = 65974800.

The previous prime is 149983381. The next prime is 149983399. The reversal of 149983394 is 493389941.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149983399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109277 + ... + 110640.

It is an arithmetic number, because the mean of its divisors is an integer number (15834096).

Almost surely, 2^149983394 is an apocalyptic number.

149983394 is a deficient number, since it is larger than the sum of its proper divisors (103362142).

149983394 is a wasteful number, since it uses less digits than its factorization.

149983394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219961.

The product of its digits is 839808, while the sum is 50.

The square root of 149983394 is about 12246.7707580407. The cubic root of 149983394 is about 531.3096766364.

The spelling of 149983394 in words is "one hundred forty-nine million, nine hundred eighty-three thousand, three hundred ninety-four".