1258361 has 4 divisors (see below), whose sum is σ = 1355172. Its totient is φ = 1161552.

The previous prime is 1258349. The next prime is 1258373. The reversal of 1258361 is 1638521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1638521 = 61 ⋅26861.

It is an interprime number because it is at equal distance from previous prime (1258349) and next prime (1258373).

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 732736 = 725^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1258361 - 2⁶ = 1258297 is a prime.

It is an alternating number because its digits alternate between odd and even.

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 1258361.

It is not an unprimeable number, because it can be changed into a prime (1258661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48386 + ... + 48411.

It is an arithmetic number, because the mean of its divisors is an integer number (338793).

2^1258361 is an apocalyptic number.

It is an amenable number.

1258361 is a deficient number, since it is larger than the sum of its proper divisors (96811).

1258361 is an equidigital number, since it uses as much as digits as its factorization.

1258361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96810.

The product of its digits is 1440, while the sum is 26.

The square root of 1258361 is about 1121.7669098347. The cubic root of 1258361 is about 107.9613773647.

The spelling of 1258361 in words is "one million, two hundred fifty-eight thousand, three hundred sixty-one".