149986943 has 8 divisors (see below), whose sum is σ = 151744560. Its totient is φ = 148236480.

The previous prime is 149986891. The next prime is 149986957. The reversal of 149986943 is 349689941.

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

It is a cyclic number.

It is not a de Polignac number, because 149986943 - 2⁸ = 149986687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149986043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48308 + ... + 51318.

It is an arithmetic number, because the mean of its divisors is an integer number (18968070).

Almost surely, 2^149986943 is an apocalyptic number.

149986943 is a deficient number, since it is larger than the sum of its proper divisors (1757617).

149986943 is a wasteful number, since it uses less digits than its factorization.

149986943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577.

The product of its digits is 1679616, while the sum is 53.

The square root of 149986943 is about 12246.9156525225. The cubic root of 149986943 is about 531.3138673296.

The spelling of 149986943 in words is "one hundred forty-nine million, nine hundred eighty-six thousand, nine hundred forty-three".