142537540 has 24 divisors (see below), whose sum is σ = 301519512. Its totient is φ = 56597760.

The previous prime is 142537529. The next prime is 142537543. The reversal of 142537540 is 45735241.

It can be written as a sum of positive squares in 4 ways, for example, as 17455684 + 125081856 = 4178^2 + 11184^2 .

It is not an unprimeable number, because it can be changed into a prime (142537543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23271 + ... + 28750.

It is an arithmetic number, because the mean of its divisors is an integer number (12563313).

Almost surely, 2^142537540 is an apocalyptic number.

142537540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142537540 is an abundant number, since it is smaller than the sum of its proper divisors (158981972).

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

142537540 is a wasteful number, since it uses less digits than its factorization.

142537540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52167 (or 52165 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 142537540 is about 11938.9086603425. The cubic root of 142537540 is about 522.3678259724.

The spelling of 142537540 in words is "one hundred forty-two million, five hundred thirty-seven thousand, five hundred forty".