73261751 has 4 divisors (see below), whose sum is σ = 73375632. Its totient is φ = 73147872.

The previous prime is 73261729. The next prime is 73261759. The reversal of 73261751 is 15716237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15716237 = 3001 ⋅5237.

It is a cyclic number.

It is not a de Polignac number, because 73261751 - 2¹⁸ = 72999607 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 (73261759) 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, 55970 + ... + 57263.

It is an arithmetic number, because the mean of its divisors is an integer number (18343908).

Almost surely, 2^73261751 is an apocalyptic number.

73261751 is a deficient number, since it is larger than the sum of its proper divisors (113881).

73261751 is a wasteful number, since it uses less digits than its factorization.

73261751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113880.

The product of its digits is 8820, while the sum is 32.

The square root of 73261751 is about 8559.3078575315. The cubic root of 73261751 is about 418.4328426138.

Adding to 73261751 its reverse (15716237), we get a palindrome (88977988).

The spelling of 73261751 in words is "seventy-three million, two hundred sixty-one thousand, seven hundred fifty-one".