149233881 has 8 divisors (see below), whose sum is σ = 199979200. Its totient is φ = 98988912.

The previous prime is 149233879. The next prime is 149233897. The reversal of 149233881 is 188332941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149233881 - 2¹ = 149233879 is a prime.

It is a super-2 number, since 2×149233881² = 44541502476644322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149233801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124390 + ... + 125583.

It is an arithmetic number, because the mean of its divisors is an integer number (24997400).

Almost surely, 2^149233881 is an apocalyptic number.

It is an amenable number.

149233881 is a deficient number, since it is larger than the sum of its proper divisors (50745319).

149233881 is a wasteful number, since it uses less digits than its factorization.

149233881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250175.

The product of its digits is 41472, while the sum is 39.

The square root of 149233881 is about 12216.1319983045. The cubic root of 149233881 is about 530.4231591468.

The spelling of 149233881 in words is "one hundred forty-nine million, two hundred thirty-three thousand, eight hundred eighty-one".