155043142 has 8 divisors (see below), whose sum is σ = 234126000. Its totient is φ = 77001144.

The previous prime is 155043139. The next prime is 155043149. The reversal of 155043142 is 241340551.

It is a happy number.

155043142 is digitally balanced in base 2, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (155043149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259842 + ... + 260437.

It is an arithmetic number, because the mean of its divisors is an integer number (29265750).

Almost surely, 2^155043142 is an apocalyptic number.

155043142 is a deficient number, since it is larger than the sum of its proper divisors (79082858).

155043142 is a wasteful number, since it uses less digits than its factorization.

155043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520430.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 155043142 is about 12451.6321018572. The cubic root of 155043142 is about 537.2183685594.

Adding to 155043142 its reverse (241340551), we get a palindrome (396383693).

The spelling of 155043142 in words is "one hundred fifty-five million, forty-three thousand, one hundred forty-two".