73147071245 has 32 divisors (see below), whose sum is σ = 94561084800. Its totient is φ = 54153944064.

The previous prime is 73147071241. The next prime is 73147071259. The reversal of 73147071245 is 54217074137.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 73147071245 - 2² = 73147071241 is a prime.

It is a super-2 number, since 2×73147071245² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73147071241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649649 + ... + 753881.

It is an arithmetic number, because the mean of its divisors is an integer number (2955033900).

Almost surely, 2^73147071245 is an apocalyptic number.

It is an amenable number.

73147071245 is a deficient number, since it is larger than the sum of its proper divisors (21414013555).

73147071245 is a wasteful number, since it uses less digits than its factorization.

73147071245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104429.

The product of its (nonzero) digits is 164640, while the sum is 41.

The spelling of 73147071245 in words is "seventy-three billion, one hundred forty-seven million, seventy-one thousand, two hundred forty-five".