51240141 has 16 divisors (see below), whose sum is σ = 76024000. Its totient is φ = 34109424.

The previous prime is 51240121. The next prime is 51240221. The reversal of 51240141 is 14104215.

It is not a de Polignac number, because 51240141 - 2¹¹ = 51238093 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 (51240121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29310 + ... + 31008.

It is an arithmetic number, because the mean of its divisors is an integer number (4751500).

Almost surely, 2^51240141 is an apocalyptic number.

It is an amenable number.

51240141 is a deficient number, since it is larger than the sum of its proper divisors (24783859).

51240141 is a wasteful number, since it uses less digits than its factorization.

51240141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 51240141 is about 7158.2219160906. The cubic root of 51240141 is about 371.4241219740.

Adding to 51240141 its reverse (14104215), we get a palindrome (65344356).

The spelling of 51240141 in words is "fifty-one million, two hundred forty thousand, one hundred forty-one".