840138062132 has 6 divisors (see below), whose sum is σ = 1470241608738. Its totient is φ = 420069031064.

The previous prime is 840138062131. The next prime is 840138062149. The reversal of 840138062132 is 231260831048.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 794173274896 + 45964787236 = 891164^2 + 214394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840138062131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105017257763 + ... + 105017257770.

It is an arithmetic number, because the mean of its divisors is an integer number (245040268123).

Almost surely, 2^840138062132 is an apocalyptic number.

It is an amenable number.

840138062132 is a deficient number, since it is larger than the sum of its proper divisors (630103546606).

840138062132 is a wasteful number, since it uses less digits than its factorization.

840138062132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210034515537 (or 210034515535 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 840138062132 in words is "eight hundred forty billion, one hundred thirty-eight million, sixty-two thousand, one hundred thirty-two".