6901281 has 10 divisors (see below), whose sum is σ = 10309442. Its totient is φ = 4600800.

The previous prime is 6901273. The next prime is 6901291. The reversal of 6901281 is 1821096.

6901281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6170256 + 731025 = 2484^2 + 855^2 .

It is not a de Polignac number, because 6901281 - 2³ = 6901273 is a prime.

It is a super-2 number, since 2×6901281² = 95255358881922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6901241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42520 + ... + 42681.

Almost surely, 2^6901281 is an apocalyptic number.

It is an amenable number.

6901281 is a deficient number, since it is larger than the sum of its proper divisors (3408161).

6901281 is an equidigital number, since it uses as much as digits as its factorization.

6901281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85213 (or 85204 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 6901281 is about 2627.0289301795. The cubic root of 6901281 is about 190.3896068198.

The spelling of 6901281 in words is "six million, nine hundred one thousand, two hundred eighty-one".