142634520 has 320 divisors, whose sum is σ = 578476800. Its totient is φ = 30792960.

The previous prime is 142634461. The next prime is 142634549. The reversal of 142634520 is 25436241.

142634520 is a `hidden beast` number, since 1 + 4 + 2 + 634 + 5 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 430755 + ... + 431085.

It is an arithmetic number, because the mean of its divisors is an integer number (1807740).

Almost surely, 2^142634520 is an apocalyptic number.

142634520 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 142634520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289238400).

142634520 is an abundant number, since it is smaller than the sum of its proper divisors (435842280).

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

142634520 is a wasteful number, since it uses less digits than its factorization.

142634520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 142634520 is about 11942.9694799911. The cubic root of 142634520 is about 522.4862690317.

The spelling of 142634520 in words is "one hundred forty-two million, six hundred thirty-four thousand, five hundred twenty".