10140520261 has 8 divisors (see below), whose sum is σ = 10173048480. Its totient is φ = 10108032528.

The previous prime is 10140520249. The next prime is 10140520289. The reversal of 10140520261 is 16202504101.

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 10140520261 - 2⁷ = 10140520133 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 (10140520561) 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, 538375 + ... + 556891.

It is an arithmetic number, because the mean of its divisors is an integer number (1271631060).

Almost surely, 2^10140520261 is an apocalyptic number.

It is an amenable number.

10140520261 is a deficient number, since it is larger than the sum of its proper divisors (32528219).

10140520261 is a wasteful number, since it uses less digits than its factorization.

10140520261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20243.

The product of its (nonzero) digits is 480, while the sum is 22.

The spelling of 10140520261 in words is "ten billion, one hundred forty million, five hundred twenty thousand, two hundred sixty-one".