51142103 has 8 divisors (see below), whose sum is σ = 55614672. Its totient is φ = 46832256.

The previous prime is 51142097. The next prime is 51142123. The reversal of 51142103 is 30124115.

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 51142103 - 2¹² = 51138007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51142123) 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, 40025 + ... + 41282.

It is an arithmetic number, because the mean of its divisors is an integer number (6951834).

Almost surely, 2^51142103 is an apocalyptic number.

51142103 is a deficient number, since it is larger than the sum of its proper divisors (4472569).

51142103 is a wasteful number, since it uses less digits than its factorization.

51142103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81361.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51142103 is about 7151.3707077734. The cubic root of 51142103 is about 371.1870882373.

Adding to 51142103 its reverse (30124115), we get a palindrome (81266218).

The spelling of 51142103 in words is "fifty-one million, one hundred forty-two thousand, one hundred three".