146692370138 has 4 divisors (see below), whose sum is σ = 220038555210. Its totient is φ = 73346185068.

The previous prime is 146692370119. The next prime is 146692370141. The reversal of 146692370138 is 831073296641.

146692370138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 79790995729 + 66901374409 = 282473^2 + 258653^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36673092533 + ... + 36673092536.

Almost surely, 2^146692370138 is an apocalyptic number.

146692370138 is a deficient number, since it is larger than the sum of its proper divisors (73346185072).

146692370138 is an equidigital number, since it uses as much as digits as its factorization.

146692370138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73346185071.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 146692370138 in words is "one hundred forty-six billion, six hundred ninety-two million, three hundred seventy thousand, one hundred thirty-eight".