842540103 has 64 divisors (see below), whose sum is σ = 1349836800. Its totient is φ = 518192640.

The previous prime is 842540087. The next prime is 842540107. The reversal of 842540103 is 301045248.

It is not a de Polignac number, because 842540103 - 2⁴ = 842540087 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842540107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2499951 + ... + 2500287.

It is an arithmetic number, because the mean of its divisors is an integer number (21091200).

Almost surely, 2^842540103 is an apocalyptic number.

842540103 is a deficient number, since it is larger than the sum of its proper divisors (507296697).

842540103 is a wasteful number, since it uses less digits than its factorization.

842540103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 842540103 is about 29026.5413544225. The cubic root of 842540103 is about 944.4889047823.

The spelling of 842540103 in words is "eight hundred forty-two million, five hundred forty thousand, one hundred three".