73021541 has 8 divisors (see below), whose sum is σ = 77613120. Its totient is φ = 68504832.

The previous prime is 73021537. The next prime is 73021547. The reversal of 73021541 is 14512037.

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

It is a cyclic number.

It is not a de Polignac number, because 73021541 - 2² = 73021537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73021547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16700 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (9701640).

Almost surely, 2^73021541 is an apocalyptic number.

It is an amenable number.

73021541 is a deficient number, since it is larger than the sum of its proper divisors (4591579).

73021541 is a wasteful number, since it uses less digits than its factorization.

73021541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37435.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 73021541 is about 8545.2642440126. The cubic root of 73021541 is about 417.9750238810.

Adding to 73021541 its reverse (14512037), we get a palindrome (87533578).

The spelling of 73021541 in words is "seventy-three million, twenty-one thousand, five hundred forty-one".