11423149 has 2 divisors, whose sum is σ = 11423150. Its totient is φ = 11423148.

The previous prime is 11423131. The next prime is 11423173. The reversal of 11423149 is 94132411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6100900 + 5322249 = 2470^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 11423149 - 2⁵ = 11423117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11423179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711574 + 5711575.

It is an arithmetic number, because the mean of its divisors is an integer number (5711575).

Almost surely, 2^11423149 is an apocalyptic number.

It is an amenable number.

11423149 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423149 is an equidigital number, since it uses as much as digits as its factorization.

11423149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 11423149 is about 3379.8149357620. The cubic root of 11423149 is about 225.2139462941.

The spelling of 11423149 in words is "eleven million, four hundred twenty-three thousand, one hundred forty-nine".