1250245 has 4 divisors (see below), whose sum is σ = 1500300. Its totient is φ = 1000192.

The previous prime is 1250243. The next prime is 1250273. The reversal of 1250245 is 5420521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5420521 = 61 ⋅88861.

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 264196 = 993^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250245 - 2¹ = 1250243 is a prime.

It is a super-2 number, since 2×1250245² = 3126225120050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250243) 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, 125020 + ... + 125029.

It is an arithmetic number, because the mean of its divisors is an integer number (375075).

2^1250245 is an apocalyptic number.

It is an amenable number.

1250245 is a deficient number, since it is larger than the sum of its proper divisors (250055).

1250245 is an equidigital number, since it uses as much as digits as its factorization.

1250245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250054.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1250245 is about 1118.1435507125. The cubic root of 1250245 is about 107.7287718618.

Adding to 1250245 its reverse (5420521), we get a palindrome (6670766).

The spelling of 1250245 in words is "one million, two hundred fifty thousand, two hundred forty-five".