142537620 has 96 divisors (see below), whose sum is σ = 424771200. Its totient is φ = 35610624.

The previous prime is 142537573. The next prime is 142537621. The reversal of 142537620 is 26735241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142537621) 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, 109936 + ... + 111224.

It is an arithmetic number, because the mean of its divisors is an integer number (4424700).

Almost surely, 2^142537620 is an apocalyptic number.

142537620 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 142537620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212385600).

142537620 is an abundant number, since it is smaller than the sum of its proper divisors (282233580).

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

142537620 is a wasteful number, since it uses less digits than its factorization.

142537620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 142537620 is about 11938.9120107320. The cubic root of 142537620 is about 522.3679236997.

The spelling of 142537620 in words is "one hundred forty-two million, five hundred thirty-seven thousand, six hundred twenty".