1250045 has 16 divisors (see below), whose sum is σ = 1600560. Its totient is φ = 935424.

The previous prime is 1250023. The next prime is 1250057. The reversal of 1250045 is 5400521.

It can be written as a sum of positive squares in 8 ways, for example, as 121 + 1249924 = 11^2 + 1118^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1250045 is a prime.

It is a super-2 number, since 2×1250045² = 3125225004050, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5249 + ... + 5481.

It is an arithmetic number, because the mean of its divisors is an integer number (100035).

2^1250045 is an apocalyptic number.

It is an amenable number.

1250045 is a deficient number, since it is larger than the sum of its proper divisors (350515).

1250045 is a wasteful number, since it uses less digits than its factorization.

1250045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1250045 is about 1118.0541131806. The cubic root of 1250045 is about 107.7230271469.

Adding to 1250045 its reverse (5400521), we get a palindrome (6650566).

It can be divided in two parts, 12500 and 45, that multiplied together give a square (562500 = 750²).

The spelling of 1250045 in words is "one million, two hundred fifty thousand, forty-five".