51015130 has 16 divisors (see below), whose sum is σ = 97229160. Its totient is φ = 19205632.

The previous prime is 51015103. The next prime is 51015131. The reversal of 51015130 is 3151015.

It can be written as a sum of positive squares in 4 ways, for example, as 46362481 + 4652649 = 6809^2 + 2157^2 .

It is not an unprimeable number, because it can be changed into a prime (51015131) 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, 149875 + ... + 150214.

Almost surely, 2^51015130 is an apocalyptic number.

51015130 is a deficient number, since it is larger than the sum of its proper divisors (46214030).

51015130 is a wasteful number, since it uses less digits than its factorization.

51015130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300113.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 51015130 is about 7142.4876618724. The cubic root of 51015130 is about 370.8796455507.

Adding to 51015130 its reverse (3151015), we get a palindrome (54166145).

The spelling of 51015130 in words is "fifty-one million, fifteen thousand, one hundred thirty".