73252145 has 8 divisors (see below), whose sum is σ = 88001640. Its totient is φ = 58535680.

The previous prime is 73252141. The next prime is 73252147. The reversal of 73252145 is 54125237.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7187761 + 66064384 = 2681^2 + 8128^2 .

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

It is not a de Polignac number, because 73252145 - 2² = 73252141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73252141) 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, 3080 + ... + 12489.

It is an arithmetic number, because the mean of its divisors is an integer number (11000205).

Almost surely, 2^73252145 is an apocalyptic number.

It is an amenable number.

73252145 is a deficient number, since it is larger than the sum of its proper divisors (14749495).

73252145 is a wasteful number, since it uses less digits than its factorization.

73252145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16515.

The product of its digits is 8400, while the sum is 29.

The square root of 73252145 is about 8558.7466956325. The cubic root of 73252145 is about 418.4145536635.

The spelling of 73252145 in words is "seventy-three million, two hundred fifty-two thousand, one hundred forty-five".