1351426 has 4 divisors (see below), whose sum is σ = 2027142. Its totient is φ = 675712.

The previous prime is 1351423. The next prime is 1351439. The reversal of 1351426 is 6241531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6241531 = 857 ⋅7283.

It can be written as a sum of positive squares in only one way, i.e., 1311025 + 40401 = 1145^2 + 201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1351397 and 1351406.

It is not an unprimeable number, because it can be changed into a prime (1351421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337855 + ... + 337858.

2^1351426 is an apocalyptic number.

1351426 is a deficient number, since it is larger than the sum of its proper divisors (675716).

1351426 is an equidigital number, since it uses as much as digits as its factorization.

1351426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675715.

The product of its digits is 720, while the sum is 22.

The square root of 1351426 is about 1162.5084945926. The cubic root of 1351426 is about 110.5598455538.

Adding to 1351426 its reverse (6241531), we get a palindrome (7592957).

It can be divided in two parts, 135 and 1426, that multiplied together give a triangular number (192510 = T₆₂₀).

The spelling of 1351426 in words is "one million, three hundred fifty-one thousand, four hundred twenty-six".