142155486 has 48 divisors (see below), whose sum is σ = 348461568. Its totient is φ = 43075800.

The previous prime is 142155467. The next prime is 142155499. The reversal of 142155486 is 684551241.

It is a happy number.

142155486 is a `hidden beast` number, since 1 + 4 + 21 + 554 + 86 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142155486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7950 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (7259616).

Almost surely, 2^142155486 is an apocalyptic number.

142155486 is an abundant number, since it is smaller than the sum of its proper divisors (206306082).

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

142155486 is a wasteful number, since it uses less digits than its factorization.

142155486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26619 (or 26607 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 142155486 is about 11922.8975505118. The cubic root of 142155486 is about 521.9006945457.

It can be divided in two parts, 14215 and 5486, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 142155486 in words is "one hundred forty-two million, one hundred fifty-five thousand, four hundred eighty-six".