149424861 has 16 divisors (see below), whose sum is σ = 204482880. Its totient is φ = 97019520.

The previous prime is 149424857. The next prime is 149424887. The reversal of 149424861 is 168424941.

It is not a de Polignac number, because 149424861 - 2² = 149424857 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149424811) 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 15 ways as a sum of consecutive naturals, for example, 18721 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (12780180).

Almost surely, 2^149424861 is an apocalyptic number.

It is an amenable number.

149424861 is a deficient number, since it is larger than the sum of its proper divisors (55058019).

149424861 is a wasteful number, since it uses less digits than its factorization.

149424861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6956.

The product of its digits is 55296, while the sum is 39.

The square root of 149424861 is about 12223.9462122508. The cubic root of 149424861 is about 530.6493299342.

The spelling of 149424861 in words is "one hundred forty-nine million, four hundred twenty-four thousand, eight hundred sixty-one".