1256246053 has 8 divisors (see below), whose sum is σ = 1265784800. Its totient is φ = 1246729968.

The previous prime is 1256246029. The next prime is 1256246087. The reversal of 1256246053 is 3506426521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1256246053 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 (1256246003) 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, 115243 + ... + 125671.

It is an arithmetic number, because the mean of its divisors is an integer number (158223100).

Almost surely, 2^1256246053 is an apocalyptic number.

It is an amenable number.

1256246053 is a deficient number, since it is larger than the sum of its proper divisors (9538747).

1256246053 is a wasteful number, since it uses less digits than its factorization.

1256246053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11331.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1256246053 is about 35443.5615168679. The cubic root of 1256246053 is about 1079.0085932268.

The spelling of 1256246053 in words is "one billion, two hundred fifty-six million, two hundred forty-six thousand, fifty-three".