11900149 has 2 divisors, whose sum is σ = 11900150. Its totient is φ = 11900148.

The previous prime is 11900107. The next prime is 11900167. The reversal of 11900149 is 94100911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11122225 + 777924 = 3335^2 + 882^2 .

It is a cyclic number.

It is not a de Polignac number, because 11900149 - 2⁹ = 11899637 is a prime.

It is a super-2 number, since 2×11900149² = 283227092444402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11900849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5950074 + 5950075.

It is an arithmetic number, because the mean of its divisors is an integer number (5950075).

Almost surely, 2^11900149 is an apocalyptic number.

It is an amenable number.

11900149 is a deficient number, since it is larger than the sum of its proper divisors (1).

11900149 is an equidigital number, since it uses as much as digits as its factorization.

11900149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11900149 is about 3449.6592585355. The cubic root of 11900149 is about 228.3060742614.

The spelling of 11900149 in words is "eleven million, nine hundred thousand, one hundred forty-nine".