2391146 has 4 divisors (see below), whose sum is σ = 3586722. Its totient is φ = 1195572.

The previous prime is 2391127. The next prime is 2391157. The reversal of 2391146 is 6411932.

2391146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1590121 + 801025 = 1261^2 + 895^2 .

It is a zygodrome in base 3.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 597785 + ... + 597788.

2^2391146 is an apocalyptic number.

2391146 is a deficient number, since it is larger than the sum of its proper divisors (1195576).

2391146 is a wasteful number, since it uses less digits than its factorization.

2391146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195575.

The product of its digits is 1296, while the sum is 26.

The square root of 2391146 is about 1546.3330818423. Note that the first 3 decimals coincide. The cubic root of 2391146 is about 133.7217438199.

The spelling of 2391146 in words is "two million, three hundred ninety-one thousand, one hundred forty-six".