142551090 has 96 divisors (see below), whose sum is σ = 419380416. Its totient is φ = 34551360.

The previous prime is 142551077. The next prime is 142551107. The reversal of 142551090 is 90155241.

142551090 is a `hidden beast` number, since 142 + 5 + 510 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 24064 + ... + 29396.

It is an arithmetic number, because the mean of its divisors is an integer number (4368546).

Almost surely, 2^142551090 is an apocalyptic number.

142551090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142551090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209690208).

142551090 is an abundant number, since it is smaller than the sum of its proper divisors (276829326).

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

142551090 is a wasteful number, since it uses less digits than its factorization.

142551090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366 (or 5354 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 142551090 is about 11939.4761191603. The cubic root of 142551090 is about 522.3843780091.

The spelling of 142551090 in words is "one hundred forty-two million, five hundred fifty-one thousand, ninety".