73251541 has 4 divisors (see below), whose sum is σ = 79910784. Its totient is φ = 66592300.

The previous prime is 73251533. The next prime is 73251559. The reversal of 73251541 is 14515237.

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: 14515237 = 11 ⋅1319567.

It is a cyclic number.

It is not a de Polignac number, because 73251541 - 2³ = 73251533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73251041) 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, 3329605 + ... + 3329626.

It is an arithmetic number, because the mean of its divisors is an integer number (19977696).

Almost surely, 2^73251541 is an apocalyptic number.

It is an amenable number.

73251541 is a deficient number, since it is larger than the sum of its proper divisors (6659243).

73251541 is a wasteful number, since it uses less digits than its factorization.

73251541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659242.

The product of its digits is 4200, while the sum is 28.

The square root of 73251541 is about 8558.7114100196. The cubic root of 73251541 is about 418.4134036490.

Adding to 73251541 its reverse (14515237), we get a palindrome (87766778).

The spelling of 73251541 in words is "seventy-three million, two hundred fifty-one thousand, five hundred forty-one".