155135142312 has 16 divisors (see below), whose sum is σ = 387837855840. Its totient is φ = 51711714096.

The previous prime is 155135142289. The next prime is 155135142313. The reversal of 155135142312 is 213241531551.

It is not an unprimeable number, because it can be changed into a prime (155135142313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3231982108 + ... + 3231982155.

It is an arithmetic number, because the mean of its divisors is an integer number (24239865990).

Almost surely, 2^155135142312 is an apocalyptic number.

155135142312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155135142312 is an abundant number, since it is smaller than the sum of its proper divisors (232702713528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155135142312 is a wasteful number, since it uses less digits than its factorization.

155135142312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463964272 (or 6463964268 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

Adding to 155135142312 its reverse (213241531551), we get a palindrome (368376673863).

The spelling of 155135142312 in words is "one hundred fifty-five billion, one hundred thirty-five million, one hundred forty-two thousand, three hundred twelve".