142155660 has 24 divisors (see below), whose sum is σ = 398036016. Its totient is φ = 37908160.

The previous prime is 142155659. The next prime is 142155661. The reversal of 142155660 is 66551241.

142155660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142155659) and next prime (142155661).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (142155661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184571 + ... + 1184690.

It is an arithmetic number, because the mean of its divisors is an integer number (16584834).

Almost surely, 2^142155660 is an apocalyptic number.

142155660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142155660 is an abundant number, since it is smaller than the sum of its proper divisors (255880356).

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

142155660 is a wasteful number, since it uses less digits than its factorization.

142155660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369273 (or 2369271 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 142155660 is about 11922.9048473935. The cubic root of 142155660 is about 521.9009074831.

The spelling of 142155660 in words is "one hundred forty-two million, one hundred fifty-five thousand, six hundred sixty".