8201400261 has 8 divisors (see below), whose sum is σ = 10935627360. Its totient is φ = 5467386672.

The previous prime is 8201400241. The next prime is 8201400289. The reversal of 8201400261 is 1620041028.

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

It is not a de Polignac number, because 8201400261 - 2²¹ = 8199303109 is a prime.

It is a super-2 number, since 2×8201400261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8201400241) 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, 95875 + ... + 159983.

It is an arithmetic number, because the mean of its divisors is an integer number (1366953420).

Almost surely, 2^8201400261 is an apocalyptic number.

It is an amenable number.

8201400261 is a deficient number, since it is larger than the sum of its proper divisors (2734227099).

8201400261 is a wasteful number, since it uses less digits than its factorization.

8201400261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106755.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 8201400261 is about 90561.5826992881. The cubic root of 8201400261 is about 2016.6444519314.

Adding to 8201400261 its reverse (1620041028), we get a palindrome (9821441289).

The spelling of 8201400261 in words is "eight billion, two hundred one million, four hundred thousand, two hundred sixty-one".