155235142 has 8 divisors (see below), whose sum is σ = 242976816. Its totient is φ = 74242872.

The previous prime is 155235137. The next prime is 155235151. The reversal of 155235142 is 241532551.

155235142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 155235142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687293 + ... + 1687384.

It is an arithmetic number, because the mean of its divisors is an integer number (30372102).

Almost surely, 2^155235142 is an apocalyptic number.

155235142 is a deficient number, since it is larger than the sum of its proper divisors (87741674).

155235142 is a wasteful number, since it uses less digits than its factorization.

155235142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374702.

The product of its digits is 6000, while the sum is 28.

The square root of 155235142 is about 12459.3395491093. The cubic root of 155235142 is about 537.4400345578.

Adding to 155235142 its reverse (241532551), we get a palindrome (396767693).

The spelling of 155235142 in words is "one hundred fifty-five million, two hundred thirty-five thousand, one hundred forty-two".