155123212104136 has 32 divisors (see below), whose sum is σ = 292319612424000. Its totient is φ = 77171320797120.

The previous prime is 155123212104127. The next prime is 155123212104139. The reversal of 155123212104136 is 631401212321551.

155123212104136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155123212104095 and 155123212104104.

It is not an unprimeable number, because it can be changed into a prime (155123212104139) 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, 343475991 + ... + 343927321.

It is an arithmetic number, because the mean of its divisors is an integer number (9134987888250).

Almost surely, 2^{155123212104136} is an apocalyptic number.

It is an amenable number.

155123212104136 is a deficient number, since it is larger than the sum of its proper divisors (137196400319864).

155123212104136 is a wasteful number, since it uses less digits than its factorization.

155123212104136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667429 (or 667425 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 155123212104136 its reverse (631401212321551), we get a palindrome (786524424425687).

The spelling of 155123212104136 in words is "one hundred fifty-five trillion, one hundred twenty-three billion, two hundred twelve million, one hundred four thousand, one hundred thirty-six".