7205541 has 16 divisors (see below), whose sum is σ = 11558400. Its totient is φ = 3900528.

The previous prime is 7205537. The next prime is 7205551. The reversal of 7205541 is 1455027.

It is not a de Polignac number, because 7205541 - 2² = 7205537 is a prime.

It is a super-2 number, since 2×7205541² = 103839642205362, which contains 22 as substring.

7205541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7205521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8631 + ... + 9428.

It is an arithmetic number, because the mean of its divisors is an integer number (722400).

Almost surely, 2^7205541 is an apocalyptic number.

It is an amenable number.

7205541 is a deficient number, since it is larger than the sum of its proper divisors (4352859).

7205541 is a wasteful number, since it uses less digits than its factorization.

7205541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18088.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 7205541 is about 2684.3138788152. The cubic root of 7205541 is about 193.1473991887.

The spelling of 7205541 in words is "seven million, two hundred five thousand, five hundred forty-one".