1249455 has 16 divisors (see below), whose sum is σ = 2064384. Its totient is φ = 644640.

The previous prime is 1249433. The next prime is 1249477. The reversal of 1249455 is 5549421.

It is an interprime number because it is at equal distance from previous prime (1249433) and next prime (1249477).

It is not a de Polignac number, because 1249455 - 2¹³ = 1241263 is a prime.

It is a super-2 number, since 2×1249455² = 3122275594050, which contains 22 as substring.

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, 879 + ... + 1808.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2^1249455 is an apocalyptic number.

1249455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1249455 is a deficient number, since it is larger than the sum of its proper divisors (814929).

1249455 is a wasteful number, since it uses less digits than its factorization.

1249455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726.

The product of its digits is 7200, while the sum is 30.

The square root of 1249455 is about 1117.7902307678. The cubic root of 1249455 is about 107.7060766670.

The spelling of 1249455 in words is "one million, two hundred forty-nine thousand, four hundred fifty-five".