72094541 has 4 divisors (see below), whose sum is σ = 72794592. Its totient is φ = 71394492.

The previous prime is 72094511. The next prime is 72094543. The reversal of 72094541 is 14549027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14549027 = 257 ⋅56611.

It is a cyclic number.

It is not a de Polignac number, because 72094541 - 2¹⁰ = 72093517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72094498 and 72094507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72094543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349871 + ... + 350076.

It is an arithmetic number, because the mean of its divisors is an integer number (18198648).

Almost surely, 2^72094541 is an apocalyptic number.

It is an amenable number.

72094541 is a deficient number, since it is larger than the sum of its proper divisors (700051).

72094541 is a wasteful number, since it uses less digits than its factorization.

72094541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700050.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 72094541 is about 8490.8504285495. The cubic root of 72094541 is about 416.1987712718.

The spelling of 72094541 in words is "seventy-two million, ninety-four thousand, five hundred forty-one".