51154102 has 4 divisors (see below), whose sum is σ = 76731156. Its totient is φ = 25577050.

The previous prime is 51154087. The next prime is 51154109. The reversal of 51154102 is 20145115.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51154102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51154109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12788524 + ... + 12788527.

It is an arithmetic number, because the mean of its divisors is an integer number (19182789).

Almost surely, 2^51154102 is an apocalyptic number.

51154102 is a deficient number, since it is larger than the sum of its proper divisors (25577054).

51154102 is a wasteful number, since it uses less digits than its factorization.

51154102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25577053.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 51154102 is about 7152.2095886516. The cubic root of 51154102 is about 371.2161153685.

Adding to 51154102 its reverse (20145115), we get a palindrome (71299217).

The spelling of 51154102 in words is "fifty-one million, one hundred fifty-four thousand, one hundred two".