142837859 has 8 divisors (see below), whose sum is σ = 153313200. Its totient is φ = 132592896.

The previous prime is 142837813. The next prime is 142837861. The reversal of 142837859 is 958738241.

Added to its reverse (958738241) it gives a square (1101576100 = 33190²).

It is a happy number.

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 142837859 - 2¹² = 142833763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142830859) 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, 56309 + ... + 58790.

It is an arithmetic number, because the mean of its divisors is an integer number (19164150).

Almost surely, 2^142837859 is an apocalyptic number.

142837859 is a deficient number, since it is larger than the sum of its proper divisors (10475341).

142837859 is a wasteful number, since it uses less digits than its factorization.

142837859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115189.

The product of its digits is 483840, while the sum is 47.

The square root of 142837859 is about 11951.4793644971. The cubic root of 142837859 is about 522.7344356734.

Adding to 142837859 its reverse (958738241), we get a square (1101576100 = 33190²).

The spelling of 142837859 in words is "one hundred forty-two million, eight hundred thirty-seven thousand, eight hundred fifty-nine".