142838501 has 8 divisors (see below), whose sum is σ = 153925464. Its totient is φ = 131765760.

The previous prime is 142838491. The next prime is 142838519. The reversal of 142838501 is 105838241.

It can be written as a sum of positive squares in 4 ways, for example, as 12100 + 142826401 = 110^2 + 11951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142838501 - 2¹⁰ = 142837477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142898501) 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, 27245 + ... + 32061.

It is an arithmetic number, because the mean of its divisors is an integer number (19240683).

Almost surely, 2^142838501 is an apocalyptic number.

It is an amenable number.

142838501 is a deficient number, since it is larger than the sum of its proper divisors (11086963).

142838501 is a wasteful number, since it uses less digits than its factorization.

142838501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7111.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 142838501 is about 11951.5062230666. The cubic root of 142838501 is about 522.7352188341.

The spelling of 142838501 in words is "one hundred forty-two million, eight hundred thirty-eight thousand, five hundred one".