11251969 has 2 divisors, whose sum is σ = 11251970. Its totient is φ = 11251968.

The previous prime is 11251931. The next prime is 11251973. The reversal of 11251969 is 96915211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8479744 + 2772225 = 2912^2 + 1665^2 .

It is a cyclic number.

It is not a de Polignac number, because 11251969 - 2¹³ = 11243777 is a prime.

It is a super-2 number, since 2×11251969² = 253213612753922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11251979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625984 + 5625985.

It is an arithmetic number, because the mean of its divisors is an integer number (5625985).

Almost surely, 2^11251969 is an apocalyptic number.

It is an amenable number.

11251969 is a deficient number, since it is larger than the sum of its proper divisors (1).

11251969 is an equidigital number, since it uses as much as digits as its factorization.

11251969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 34.

The square root of 11251969 is about 3354.3954745975. The cubic root of 11251969 is about 224.0833089889.

The spelling of 11251969 in words is "eleven million, two hundred fifty-one thousand, nine hundred sixty-nine".