31256001461 has 8 divisors (see below), whose sum is σ = 31806438048. Its totient is φ = 30710290000.

The previous prime is 31256001431. The next prime is 31256001467. The reversal of 31256001461 is 16410065213.

It is a happy number.

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-31256001461 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 (31256001467) 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, 1167935 + ... + 1194396.

It is an arithmetic number, because the mean of its divisors is an integer number (3975804756).

Almost surely, 2^31256001461 is an apocalyptic number.

It is an amenable number.

31256001461 is a deficient number, since it is larger than the sum of its proper divisors (550436587).

31256001461 is a wasteful number, since it uses less digits than its factorization.

31256001461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362563.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 31256001461 its reverse (16410065213), we get a palindrome (47666066674).

The spelling of 31256001461 in words is "thirty-one billion, two hundred fifty-six million, one thousand, four hundred sixty-one".