11451478 has 4 divisors (see below), whose sum is σ = 17177220. Its totient is φ = 5725738.

The previous prime is 11451467. The next prime is 11451497. The reversal of 11451478 is 87415411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87415411 = 17 ⋅5142083.

It is a super-2 number, since 2×11451478² = 262272696768968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862868 + ... + 2862871.

It is an arithmetic number, because the mean of its divisors is an integer number (4294305).

Almost surely, 2^11451478 is an apocalyptic number.

11451478 is a deficient number, since it is larger than the sum of its proper divisors (5725742).

11451478 is an equidigital number, since it uses as much as digits as its factorization.

11451478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725741.

The product of its digits is 4480, while the sum is 31.

The square root of 11451478 is about 3384.0032505895. The cubic root of 11451478 is about 225.3999667750.

Adding to 11451478 its reverse (87415411), we get a palindrome (98866889).

The spelling of 11451478 in words is "eleven million, four hundred fifty-one thousand, four hundred seventy-eight".