2391149 has 4 divisors (see below), whose sum is σ = 2495136. Its totient is φ = 2287164.

The previous prime is 2391127. The next prime is 2391157. The reversal of 2391149 is 9411932.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2391149 - 2⁸ = 2390893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51959 + ... + 52004.

It is an arithmetic number, because the mean of its divisors is an integer number (623784).

2^2391149 is an apocalyptic number.

It is an amenable number.

2391149 is a deficient number, since it is larger than the sum of its proper divisors (103987).

2391149 is a wasteful number, since it uses less digits than its factorization.

2391149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103986.

The product of its digits is 1944, while the sum is 29.

The square root of 2391149 is about 1546.3340518788. The cubic root of 2391149 is about 133.7217997436.

The spelling of 2391149 in words is "two million, three hundred ninety-one thousand, one hundred forty-nine".