2515122 has 12 divisors (see below), whose sum is σ = 5449470. Its totient is φ = 838368.

The previous prime is 2515103. The next prime is 2515127. The reversal of 2515122 is 2215152.

It can be written as a sum of positive squares in only one way, i.e., 2461761 + 53361 = 1569^2 + 231^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 139729 = 2515122 / (2 + 5 + 1 + 5 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2515095 and 2515104.

It is not an unprimeable number, because it can be changed into a prime (2515127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69847 + ... + 69882.

2^2515122 is an apocalyptic number.

2515122 is an abundant number, since it is smaller than the sum of its proper divisors (2934348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2515122 is a wasteful number, since it uses less digits than its factorization.

2515122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139737 (or 139734 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 2515122 is about 1585.9136168152. The cubic root of 2515122 is about 135.9939804141.

The spelling of 2515122 in words is "two million, five hundred fifteen thousand, one hundred twenty-two".