142155030 has 32 divisors (see below), whose sum is σ = 341488224. Its totient is φ = 37872896.

The previous prime is 142155007. The next prime is 142155031. The reversal of 142155030 is 30551241.

It is a junction number, because it is equal to n+sod(n) for n = 142154988 and 142155006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142155031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56152 + ... + 58628.

It is an arithmetic number, because the mean of its divisors is an integer number (10671507).

Almost surely, 2^142155030 is an apocalyptic number.

142155030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142155030 is an abundant number, since it is smaller than the sum of its proper divisors (199333194).

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

142155030 is a wasteful number, since it uses less digits than its factorization.

142155030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400.

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

The square root of 142155030 is about 11922.8784276281. The cubic root of 142155030 is about 521.9001365019.

The spelling of 142155030 in words is "one hundred forty-two million, one hundred fifty-five thousand, thirty".