142754445990 has 192 divisors, whose sum is σ = 410967752832. Its totient is φ = 34152192000.

The previous prime is 142754445983. The next prime is 142754446013. The reversal of 142754445990 is 99544457241.

142754445990 is a `hidden beast` number, since 1 + 4 + 2 + 7 + 5 + 4 + 44 + 599 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77964375 + ... + 77966205.

It is an arithmetic number, because the mean of its divisors is an integer number (2140457046).

Almost surely, 2^142754445990 is an apocalyptic number.

142754445990 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 142754445990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205483876416).

142754445990 is an abundant number, since it is smaller than the sum of its proper divisors (268213306842).

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

142754445990 is a wasteful number, since it uses less digits than its factorization.

142754445990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3695 (or 3692 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 142754445990 in words is "one hundred forty-two billion, seven hundred fifty-four million, four hundred forty-five thousand, nine hundred ninety".