1357241 has 4 divisors (see below), whose sum is σ = 1366500. Its totient is φ = 1347984.

The previous prime is 1357201. The next prime is 1357333. The reversal of 1357241 is 1427531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 1201216 = 395^2 + 1096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1357241 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁷ + 5⁵ + 7⁷ + 2¹⁹ + 4⁶ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1357201) 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, 4406 + ... + 4703.

It is an arithmetic number, because the mean of its divisors is an integer number (341625).

2^1357241 is an apocalyptic number.

It is an amenable number.

1357241 is a deficient number, since it is larger than the sum of its proper divisors (9259).

1357241 is an equidigital number, since it uses as much as digits as its factorization.

1357241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9258.

The product of its digits is 840, while the sum is 23.

The square root of 1357241 is about 1165.0068669326. The cubic root of 1357241 is about 110.7181932519.

The spelling of 1357241 in words is "one million, three hundred fifty-seven thousand, two hundred forty-one".