149243558 has 16 divisors (see below), whose sum is σ = 226195200. Its totient is φ = 73849416.

The previous prime is 149243557. The next prime is 149243569. The reversal of 149243558 is 855342941.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149243557) 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, 86993 + ... + 88691.

It is an arithmetic number, because the mean of its divisors is an integer number (14137200).

Almost surely, 2^149243558 is an apocalyptic number.

149243558 is a deficient number, since it is larger than the sum of its proper divisors (76951642).

149243558 is a wasteful number, since it uses less digits than its factorization.

149243558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its digits is 172800, while the sum is 41.

The square root of 149243558 is about 12216.5280665171. The cubic root of 149243558 is about 530.4346239114.

The spelling of 149243558 in words is "one hundred forty-nine million, two hundred forty-three thousand, five hundred fifty-eight".