155400142 has 8 divisors (see below), whose sum is σ = 238059936. Its totient is φ = 76046832.

The previous prime is 155400139. The next prime is 155400163. The reversal of 155400142 is 241004551.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826503 + ... + 826690.

It is an arithmetic number, because the mean of its divisors is an integer number (29757492).

Almost surely, 2^155400142 is an apocalyptic number.

155400142 is a deficient number, since it is larger than the sum of its proper divisors (82659794).

155400142 is a wasteful number, since it uses less digits than its factorization.

155400142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653242.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 155400142 is about 12465.9593293096. The cubic root of 155400142 is about 537.6303827924.

Adding to 155400142 its reverse (241004551), we get a palindrome (396404693).

The spelling of 155400142 in words is "one hundred fifty-five million, four hundred thousand, one hundred forty-two".