45234032157212 has 24 divisors (see below), whose sum is σ = 81714032373120. Its totient is φ = 21887182586880.

The previous prime is 45234032157211. The next prime is 45234032157263. The reversal of 45234032157212 is 21275123043254.

It is a happy number.

It is a super-2 number, since 2×45234032157212² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45234032157212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45234032157211) 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, 8929088 + ... + 13045944.

It is an arithmetic number, because the mean of its divisors is an integer number (3404751348880).

Almost surely, 2^{45234032157212} is an apocalyptic number.

It is an amenable number.

45234032157212 is a deficient number, since it is larger than the sum of its proper divisors (36480000215908).

45234032157212 is a wasteful number, since it uses less digits than its factorization.

45234032157212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205501 (or 4205499 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 45234032157212 in words is "forty-five trillion, two hundred thirty-four billion, thirty-two million, one hundred fifty-seven thousand, two hundred twelve".