73243501 has 4 divisors (see below), whose sum is σ = 73319904. Its totient is φ = 73167100.

The previous prime is 73243451. The next prime is 73243517. The reversal of 73243501 is 10534237.

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.

It is a cyclic number.

It is not a de Polignac number, because 73243501 - 2¹⁵ = 73210733 is a prime.

It is a super-2 number, since 2×73243501² = 10729220877474002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73243571) 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, 36745 + ... + 38686.

It is an arithmetic number, because the mean of its divisors is an integer number (18329976).

Almost surely, 2^73243501 is an apocalyptic number.

It is an amenable number.

73243501 is a deficient number, since it is larger than the sum of its proper divisors (76403).

73243501 is an equidigital number, since it uses as much as digits as its factorization.

73243501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76402.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 73243501 is about 8558.2417002560. The cubic root of 73243501 is about 418.3980949069.

Adding to 73243501 its reverse (10534237), we get a palindrome (83777738).

The spelling of 73243501 in words is "seventy-three million, two hundred forty-three thousand, five hundred one".