1395245 has 8 divisors (see below), whose sum is σ = 1685016. Its totient is φ = 1109056.

The previous prime is 1395223. The next prime is 1395263. The reversal of 1395245 is 5425931.

It can be written as a sum of positive squares in 4 ways, for example, as 477481 + 917764 = 691^2 + 958^2 .

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 1395245 - 2⁶ = 1395181 is a prime.

It is a super-2 number, since 2×1395245² = 3893417220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (210627).

2^1395245 is an apocalyptic number.

It is an amenable number.

1395245 is a deficient number, since it is larger than the sum of its proper divisors (289771).

1395245 is a wasteful number, since it uses less digits than its factorization.

1395245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791.

The product of its digits is 5400, while the sum is 29.

The square root of 1395245 is about 1181.2048933187. The cubic root of 1395245 is about 111.7420989798.

The spelling of 1395245 in words is "one million, three hundred ninety-five thousand, two hundred forty-five".