142487100 has 270 divisors, whose sum is σ = 538793640. Its totient is φ = 32477760.

The previous prime is 142487071. The next prime is 142487101. The reversal of 142487100 is 1784241.

142487100 = 140³ + 141³ + ... + 175³.

It is a tau number, because it is divible by the number of its divisors (270).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142487101) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 396721 + ... + 397079.

It is an arithmetic number, because the mean of its divisors is an integer number (1995532).

Almost surely, 2^142487100 is an apocalyptic number.

142487100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142487100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269396820).

142487100 is an abundant number, since it is smaller than the sum of its proper divisors (396306540).

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

142487100 is a wasteful number, since it uses less digits than its factorization.

142487100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 142487100 is about 11936.7960525427. The cubic root of 142487100 is about 522.3062016412.

The spelling of 142487100 in words is "one hundred forty-two million, four hundred eighty-seven thousand, one hundred".