1256453230 has 8 divisors (see below), whose sum is σ = 2261615832. Its totient is φ = 502581288.

The previous prime is 1256453213. The next prime is 1256453239. The reversal of 1256453230 is 323546521.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1256453192 and 1256453201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256453239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62822652 + ... + 62822671.

It is an arithmetic number, because the mean of its divisors is an integer number (282701979).

Almost surely, 2^1256453230 is an apocalyptic number.

1256453230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1256453230 is a deficient number, since it is larger than the sum of its proper divisors (1005162602).

1256453230 is a wasteful number, since it uses less digits than its factorization.

1256453230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125645330.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1256453230 is about 35446.4840287440. The cubic root of 1256453230 is about 1079.0679057782.

Adding to 1256453230 its reverse (323546521), we get a palindrome (1579999751).

The spelling of 1256453230 in words is "one billion, two hundred fifty-six million, four hundred fifty-three thousand, two hundred thirty".