73145652 has 24 divisors (see below), whose sum is σ = 170856000. Its totient is φ = 24355776.

The previous prime is 73145621. The next prime is 73145693. The reversal of 73145652 is 25654137.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10849 + ... + 16247.

It is an arithmetic number, because the mean of its divisors is an integer number (7119000).

Almost surely, 2^73145652 is an apocalyptic number.

It is an amenable number.

73145652 is an abundant number, since it is smaller than the sum of its proper divisors (97710348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73145652 is a wasteful number, since it uses less digits than its factorization.

73145652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535 (or 6533 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 73145652 is about 8552.5231364785. The cubic root of 73145652 is about 418.2116934777.

Adding to 73145652 its reverse (25654137), we get a palindrome (98799789).

The spelling of 73145652 in words is "seventy-three million, one hundred forty-five thousand, six hundred fifty-two".