149859506 has 4 divisors (see below), whose sum is σ = 224789262. Its totient is φ = 74929752.

The previous prime is 149859491. The next prime is 149859511. The reversal of 149859506 is 605958941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 146192281 + 3667225 = 12091^2 + 1915^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37464875 + ... + 37464878.

Almost surely, 2^149859506 is an apocalyptic number.

149859506 is a deficient number, since it is larger than the sum of its proper divisors (74929756).

149859506 is an equidigital number, since it uses as much as digits as its factorization.

149859506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74929755.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 149859506 is about 12241.7117267153. The cubic root of 149859506 is about 531.1633470478.

The spelling of 149859506 in words is "one hundred forty-nine million, eight hundred fifty-nine thousand, five hundred six".