155271142 has 16 divisors (see below), whose sum is σ = 252659232. Its totient is φ = 71138880.

The previous prime is 155271121. The next prime is 155271167. The reversal of 155271142 is 241172551.

It is a self number, because there is not a number n which added to its sum of digits gives 155271142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18234 + ... + 25357.

It is an arithmetic number, because the mean of its divisors is an integer number (15791202).

Almost surely, 2^155271142 is an apocalyptic number.

155271142 is a deficient number, since it is larger than the sum of its proper divisors (97388090).

155271142 is a wasteful number, since it uses less digits than its factorization.

155271142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43743.

The product of its digits is 2800, while the sum is 28.

The square root of 155271142 is about 12460.7841647306. The cubic root of 155271142 is about 537.4815765814.

The spelling of 155271142 in words is "one hundred fifty-five million, two hundred seventy-one thousand, one hundred forty-two".