11491954 has 4 divisors (see below), whose sum is σ = 17237934. Its totient is φ = 5745976.

The previous prime is 11491933. The next prime is 11491957. The reversal of 11491954 is 45919411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45919411 = 109 ⋅421279.

It can be written as a sum of positive squares in only one way, i.e., 9455625 + 2036329 = 3075^2 + 1427^2 .

It is not an unprimeable number, because it can be changed into a prime (11491957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2872987 + ... + 2872990.

Almost surely, 2^11491954 is an apocalyptic number.

11491954 is a deficient number, since it is larger than the sum of its proper divisors (5745980).

11491954 is an equidigital number, since it uses as much as digits as its factorization.

11491954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745979.

The product of its digits is 6480, while the sum is 34.

The square root of 11491954 is about 3389.9784660083. The cubic root of 11491954 is about 225.6652181588.

The spelling of 11491954 in words is "eleven million, four hundred ninety-one thousand, nine hundred fifty-four".