1525042122 has 16 divisors (see below), whose sum is σ = 3053032320. Its totient is φ = 507856032.

The previous prime is 1525042097. The next prime is 1525042139. The reversal of 1525042122 is 2212405251.

It is a junction number, because it is equal to n+sod(n) for n = 1525042092 and 1525042101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116083 + ... + 128550.

It is an arithmetic number, because the mean of its divisors is an integer number (190814520).

Almost surely, 2^1525042122 is an apocalyptic number.

1525042122 is an abundant number, since it is smaller than the sum of its proper divisors (1527990198).

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

1525042122 is a wasteful number, since it uses less digits than its factorization.

1525042122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245677.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1525042122 is about 39051.7876927549. The cubic root of 1525042122 is about 1151.0493564916.

Adding to 1525042122 its reverse (2212405251), we get a palindrome (3737447373).

The spelling of 1525042122 in words is "one billion, five hundred twenty-five million, forty-two thousand, one hundred twenty-two".