73725151 has 4 divisors (see below), whose sum is σ = 74305792. Its totient is φ = 73144512.

The previous prime is 73725103. The next prime is 73725199. The reversal of 73725151 is 15152737.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (73725103) and next prime (73725199).

It is a cyclic number.

It is not a de Polignac number, because 73725151 - 2⁹ = 73724639 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 (73725251) 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, 290130 + ... + 290383.

It is an arithmetic number, because the mean of its divisors is an integer number (18576448).

Almost surely, 2^73725151 is an apocalyptic number.

73725151 is a deficient number, since it is larger than the sum of its proper divisors (580641).

73725151 is a wasteful number, since it uses less digits than its factorization.

73725151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580640.

The product of its digits is 7350, while the sum is 31.

The square root of 73725151 is about 8586.3351320572. The cubic root of 73725151 is about 419.3132218955.

Adding to 73725151 its reverse (15152737), we get a palindrome (88877888).

The spelling of 73725151 in words is "seventy-three million, seven hundred twenty-five thousand, one hundred fifty-one".