1051478 has 4 divisors (see below), whose sum is σ = 1577220. Its totient is φ = 525738.

The previous prime is 1051471. The next prime is 1051481. The reversal of 1051478 is 8741501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8741501 = 19 ⋅460079.

It is a super-2 number, since 2×1051478² = 2211211968968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262868 + ... + 262871.

It is an arithmetic number, because the mean of its divisors is an integer number (394305).

2^1051478 is an apocalyptic number.

1051478 is a deficient number, since it is larger than the sum of its proper divisors (525742).

1051478 is an equidigital number, since it uses as much as digits as its factorization.

1051478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525741.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1051478 is about 1025.4160131381. The cubic root of 1051478 is about 101.6873032849.

Adding to 1051478 its reverse (8741501), we get a palindrome (9792979).

The spelling of 1051478 in words is "one million, fifty-one thousand, four hundred seventy-eight".