1255240461 has 8 divisors (see below), whose sum is σ = 1714474944. Its totient is φ = 816416480.

The previous prime is 1255240451. The next prime is 1255240487. The reversal of 1255240461 is 1640425521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255240461 - 2⁶ = 1255240397 is a prime.

It is a super-3 number, since 3×1255240461³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255240411) 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, 5102481 + ... + 5102726.

It is an arithmetic number, because the mean of its divisors is an integer number (214309368).

Almost surely, 2^1255240461 is an apocalyptic number.

It is an amenable number.

1255240461 is a deficient number, since it is larger than the sum of its proper divisors (459234483).

1255240461 is a wasteful number, since it uses less digits than its factorization.

1255240461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10205251.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1255240461 is about 35429.3728564309. The cubic root of 1255240461 is about 1078.7206103508.

Adding to 1255240461 its reverse (1640425521), we get a palindrome (2895665982).

The spelling of 1255240461 in words is "one billion, two hundred fifty-five million, two hundred forty thousand, four hundred sixty-one".