1249045 has 16 divisors (see below), whose sum is σ = 1732608. Its totient is φ = 846720.

The previous prime is 1249043. The next prime is 1249049. The reversal of 1249045 is 5409421.

It is not a de Polignac number, because 1249045 - 2¹ = 1249043 is a prime.

It is a super-2 number, since 2×1249045² = 3120226824050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (108288).

2^1249045 is an apocalyptic number.

It is an amenable number.

1249045 is a deficient number, since it is larger than the sum of its proper divisors (483563).

1249045 is a wasteful number, since it uses less digits than its factorization.

1249045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1249045 is about 1117.6068181610. The cubic root of 1249045 is about 107.6942943773.

The spelling of 1249045 in words is "one million, two hundred forty-nine thousand, forty-five".