149983331 has 4 divisors (see below), whose sum is σ = 155155200. Its totient is φ = 144811464.

The previous prime is 149983313. The next prime is 149983343. The reversal of 149983331 is 133389941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133389941 = 181 ⋅736961.

It is a cyclic number.

It is not a de Polignac number, because 149983331 - 2²² = 145789027 is a prime.

It is a super-2 number, since 2×149983331² = 44989999155711122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149983381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585891 + ... + 2585948.

It is an arithmetic number, because the mean of its divisors is an integer number (38788800).

Almost surely, 2^149983331 is an apocalyptic number.

149983331 is a deficient number, since it is larger than the sum of its proper divisors (5171869).

149983331 is an equidigital number, since it uses as much as digits as its factorization.

149983331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5171868.

The product of its digits is 69984, while the sum is 41.

The square root of 149983331 is about 12246.7681859338. The cubic root of 149983331 is about 531.3096022448.

The spelling of 149983331 in words is "one hundred forty-nine million, nine hundred eighty-three thousand, three hundred thirty-one".