1258427 has 8 divisors (see below), whose sum is σ = 1339200. Its totient is φ = 1179144.

The previous prime is 1258423. The next prime is 1258429. The reversal of 1258427 is 7248521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1258427 - 2² = 1258423 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1258427.

It is not an unprimeable number, because it can be changed into a prime (1258421) by changing a digit.

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, 1724 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (167400).

2^1258427 is an apocalyptic number.

1258427 is a deficient number, since it is larger than the sum of its proper divisors (80773).

1258427 is a wasteful number, since it uses less digits than its factorization.

1258427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 4480, while the sum is 29.

The square root of 1258427 is about 1121.7963273251. The cubic root of 1258427 is about 107.9632648268.

It can be divided in two parts, 1258 and 427, that multiplied together give a triangular number (537166 = T₁₀₃₆).

The spelling of 1258427 in words is "one million, two hundred fifty-eight thousand, four hundred twenty-seven".