7271401057 has 4 divisors (see below), whose sum is σ = 7272869380. Its totient is φ = 7269932736.

The previous prime is 7271401021. The next prime is 7271401087. The reversal of 7271401057 is 7501041727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2653383121 + 4618017936 = 51511^2 + 67956^2 .

It is a cyclic number.

It is not a de Polignac number, because 7271401057 - 2¹⁵ = 7271368289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7271401087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726708 + ... + 736645.

It is an arithmetic number, because the mean of its divisors is an integer number (1818217345).

Almost surely, 2^7271401057 is an apocalyptic number.

It is an amenable number.

7271401057 is a deficient number, since it is larger than the sum of its proper divisors (1468323).

7271401057 is a wasteful number, since it uses less digits than its factorization.

7271401057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468322.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 7271401057 is about 85272.5105587961. The cubic root of 7271401057 is about 1937.3408369399.

The spelling of 7271401057 in words is "seven billion, two hundred seventy-one million, four hundred one thousand, fifty-seven".