136405532372 has 12 divisors (see below), whose sum is σ = 238774276020. Its totient is φ = 68184310656.

The previous prime is 136405532321. The next prime is 136405532387. The reversal of 136405532372 is 273235504631.

It can be written as a sum of positive squares in 2 ways, for example, as 22549226896 + 113856305476 = 150164^2 + 337426^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4597247 + ... + 4626822.

It is an arithmetic number, because the mean of its divisors is an integer number (19897856335).

Almost surely, 2^136405532372 is an apocalyptic number.

It is an amenable number.

136405532372 is a deficient number, since it is larger than the sum of its proper divisors (102368743648).

136405532372 is a wasteful number, since it uses less digits than its factorization.

136405532372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227770 (or 9227768 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 136405532372 in words is "one hundred thirty-six billion, four hundred five million, five hundred thirty-two thousand, three hundred seventy-two".