7275381 has 8 divisors (see below), whose sum is σ = 9752064. Its totient is φ = 4824480.

The previous prime is 7275379. The next prime is 7275391. The reversal of 7275381 is 1835727.

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

It is not a de Polignac number, because 7275381 - 2¹ = 7275379 is a prime.

It is a super-2 number, since 2×7275381² = 105862337390322, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7275311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5776 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (1219008).

Almost surely, 2^7275381 is an apocalyptic number.

It is an amenable number.

7275381 is a deficient number, since it is larger than the sum of its proper divisors (2476683).

7275381 is a wasteful number, since it uses less digits than its factorization.

7275381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12891.

The product of its digits is 11760, while the sum is 33.

The square root of 7275381 is about 2697.2914191833. The cubic root of 7275381 is about 193.7694235123.

The spelling of 7275381 in words is "seven million, two hundred seventy-five thousand, three hundred eighty-one".