1293855 has 8 divisors (see below), whose sum is σ = 2070192. Its totient is φ = 690048.

The previous prime is 1293841. The next prime is 1293857. The reversal of 1293855 is 5583921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1293855 - 2⁴ = 1293839 is a prime.

It is a super-2 number, since 2×1293855² = 3348121522050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43114 + ... + 43143.

It is an arithmetic number, because the mean of its divisors is an integer number (258774).

2^1293855 is an apocalyptic number.

1293855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1293855 is a deficient number, since it is larger than the sum of its proper divisors (776337).

1293855 is an equidigital number, since it uses as much as digits as its factorization.

1293855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86265.

The product of its digits is 10800, while the sum is 33.

The square root of 1293855 is about 1137.4774723044. The cubic root of 1293855 is about 108.9670522981.

The spelling of 1293855 in words is "one million, two hundred ninety-three thousand, eight hundred fifty-five".