1255023 has 24 divisors (see below), whose sum is σ = 2261376. Its totient is φ = 651600.

The previous prime is 1255021. The next prime is 1255039. The reversal of 1255023 is 3205521.

Added to its reverse (3205521) it gives a square (4460544 = 2112²).

It is a happy number.

It is not a de Polignac number, because 1255023 - 2¹ = 1255021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1254987 and 1255005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (94224).

2^1255023 is an apocalyptic number.

1255023 is a deficient number, since it is larger than the sum of its proper divisors (1006353).

1255023 is a wasteful number, since it uses less digits than its factorization.

1255023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1255023 is about 1120.2780904758. The cubic root of 1255023 is about 107.8658313333.

Adding to 1255023 its reverse (3205521), we get a square (4460544 = 2112²).

The spelling of 1255023 in words is "one million, two hundred fifty-five thousand, twenty-three".