1249623 has 12 divisors (see below), whose sum is σ = 1847560. Its totient is φ = 813456.

The previous prime is 1249621. The next prime is 1249627. The reversal of 1249623 is 3269421.

It is not a de Polignac number, because 1249623 - 2¹ = 1249621 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 (1249621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1228 + ... + 2001.

2^1249623 is an apocalyptic number.

1249623 is a deficient number, since it is larger than the sum of its proper divisors (597937).

1249623 is a wasteful number, since it uses less digits than its factorization.

1249623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3275 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1249623 is about 1117.8653765101. The cubic root of 1249623 is about 107.7109037876.

The spelling of 1249623 in words is "one million, two hundred forty-nine thousand, six hundred twenty-three".