51140193 has 8 divisors (see below), whose sum is σ = 73432128. Its totient is φ = 31470864.

The previous prime is 51140171. The next prime is 51140203. The reversal of 51140193 is 39104115.

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

It is not a de Polignac number, because 51140193 - 2⁶ = 51140129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51140123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655605 + ... + 655682.

It is an arithmetic number, because the mean of its divisors is an integer number (9179016).

Almost surely, 2^51140193 is an apocalyptic number.

It is an amenable number.

51140193 is a deficient number, since it is larger than the sum of its proper divisors (22291935).

51140193 is a wasteful number, since it uses less digits than its factorization.

51140193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311303.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 51140193 is about 7151.2371656938. The cubic root of 51140193 is about 371.1824672817.

It can be divided in two parts, 511 and 40193, that added together give a palindrome (40704).

The spelling of 51140193 in words is "fifty-one million, one hundred forty thousand, one hundred ninety-three".