11903149 has 2 divisors, whose sum is σ = 11903150. Its totient is φ = 11903148.

The previous prime is 11903123. The next prime is 11903189. The reversal of 11903149 is 94130911.

It is a happy number.

11903149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7387524 + 4515625 = 2718^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 11903149 - 2⁹ = 11902637 is a prime.

It is a super-2 number, since 2×11903149² = 283369912232402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11903119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951574 + 5951575.

It is an arithmetic number, because the mean of its divisors is an integer number (5951575).

Almost surely, 2^11903149 is an apocalyptic number.

It is an amenable number.

11903149 is a deficient number, since it is larger than the sum of its proper divisors (1).

11903149 is an equidigital number, since it uses as much as digits as its factorization.

11903149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11903149 is about 3450.0940566889. The cubic root of 11903149 is about 228.3252577936.

The spelling of 11903149 in words is "eleven million, nine hundred three thousand, one hundred forty-nine".