142487904 has 192 divisors, whose sum is σ = 433520640. Its totient is φ = 40642560.

The previous prime is 142487899. The next prime is 142487909. The reversal of 142487904 is 409784241.

It is an interprime number because it is at equal distance from previous prime (142487899) and next prime (142487909).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142487909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1121889 + ... + 1122015.

It is an arithmetic number, because the mean of its divisors is an integer number (2257920).

Almost surely, 2^142487904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142487904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216760320).

142487904 is an abundant number, since it is smaller than the sum of its proper divisors (291032736).

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

142487904 is a wasteful number, since it uses less digits than its factorization.

142487904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 142487904 is about 11936.8297298738. The cubic root of 142487904 is about 522.3071840305.

The spelling of 142487904 in words is "one hundred forty-two million, four hundred eighty-seven thousand, nine hundred four".