155030142 has 8 divisors (see below), whose sum is σ = 310060296. Its totient is φ = 51676712.

The previous prime is 155030131. The next prime is 155030147. The reversal of 155030142 is 241030551.

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

155030142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155030147) 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, 12919173 + ... + 12919184.

It is an arithmetic number, because the mean of its divisors is an integer number (38757537).

Almost surely, 2^155030142 is an apocalyptic number.

155030142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155030142 is a wasteful number, since it uses less digits than its factorization.

155030142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25838362.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 155030142 is about 12451.1100709937. The cubic root of 155030142 is about 537.2033533107.

Adding to 155030142 its reverse (241030551), we get a palindrome (396060693).

The spelling of 155030142 in words is "one hundred fifty-five million, thirty thousand, one hundred forty-two".