1399253 has 8 divisors (see below), whose sum is σ = 1510488. Its totient is φ = 1291264.

The previous prime is 1399231. The next prime is 1399261. The reversal of 1399253 is 3529931.

It can be written as a sum of positive squares in 4 ways, for example, as 237169 + 1162084 = 487^2 + 1078^2 .

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 1399253 - 2⁸ = 1398997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399213) 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, 125 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (188811).

2^1399253 is an apocalyptic number.

It is an amenable number.

1399253 is a deficient number, since it is larger than the sum of its proper divisors (111235).

1399253 is a wasteful number, since it uses less digits than its factorization.

1399253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its digits is 7290, while the sum is 32.

The square root of 1399253 is about 1182.9002493871. The cubic root of 1399253 is about 111.8489939864.

The spelling of 1399253 in words is "one million, three hundred ninety-nine thousand, two hundred fifty-three".