11251490 has 16 divisors (see below), whose sum is σ = 20531448. Its totient is φ = 4438656.

The previous prime is 11251489. The next prime is 11251517. The reversal of 11251490 is 9415211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10699441 + 552049 = 3271^2 + 743^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6977 + ... + 8436.

Almost surely, 2^11251490 is an apocalyptic number.

11251490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11251490 is a deficient number, since it is larger than the sum of its proper divisors (9279958).

11251490 is a wasteful number, since it uses less digits than its factorization.

11251490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15493.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 11251490 is about 3354.3240749814. The cubic root of 11251490 is about 224.0801291772.

The spelling of 11251490 in words is "eleven million, two hundred fifty-one thousand, four hundred ninety".