149788283 has 4 divisors (see below), whose sum is σ = 149939520. Its totient is φ = 149637048.

The previous prime is 149788279. The next prime is 149788297. The reversal of 149788283 is 382887941.

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

It is a cyclic number.

It is not a de Polignac number, because 149788283 - 2² = 149788279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149788253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74123 + ... + 76116.

It is an arithmetic number, because the mean of its divisors is an integer number (37484880).

Almost surely, 2^149788283 is an apocalyptic number.

149788283 is a deficient number, since it is larger than the sum of its proper divisors (151237).

149788283 is an equidigital number, since it uses as much as digits as its factorization.

149788283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151236.

The product of its digits is 774144, while the sum is 50.

The square root of 149788283 is about 12238.8023515375. The cubic root of 149788283 is about 531.0791859048.

The spelling of 149788283 in words is "one hundred forty-nine million, seven hundred eighty-eight thousand, two hundred eighty-three".