1364257 has 8 divisors (see below), whose sum is σ = 1461600. Its totient is φ = 1269504.

The previous prime is 1364243. The next prime is 1364263. The reversal of 1364257 is 7524631.

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

It is not a de Polignac number, because 1364257 - 2¹¹ = 1362209 is a prime.

It is a super-2 number, since 2×1364257² = 3722394324098, which contains 22 as substring.

It is a Duffinian number.

1364257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1364287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (182700).

2^1364257 is an apocalyptic number.

It is an amenable number.

1364257 is a deficient number, since it is larger than the sum of its proper divisors (97343).

1364257 is a wasteful number, since it uses less digits than its factorization.

1364257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its digits is 5040, while the sum is 28.

The square root of 1364257 is about 1168.0141266269. The cubic root of 1364257 is about 110.9086443631.

Adding to 1364257 its reverse (7524631), we get a palindrome (8888888).

The spelling of 1364257 in words is "one million, three hundred sixty-four thousand, two hundred fifty-seven".