149405973 has 8 divisors (see below), whose sum is σ = 201036000. Its totient is φ = 98689968.

The previous prime is 149405959. The next prime is 149405983. The reversal of 149405973 is 379504941.

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

It is not a de Polignac number, because 149405973 - 2⁸ = 149405717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149405983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228123 + ... + 228776.

It is an arithmetic number, because the mean of its divisors is an integer number (25129500).

Almost surely, 2^149405973 is an apocalyptic number.

It is an amenable number.

149405973 is a deficient number, since it is larger than the sum of its proper divisors (51630027).

149405973 is a wasteful number, since it uses less digits than its factorization.

149405973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457011.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 149405973 is about 12223.1736059012. The cubic root of 149405973 is about 530.6269701412.

The spelling of 149405973 in words is "one hundred forty-nine million, four hundred five thousand, nine hundred seventy-three".