1225135015 has 32 divisors (see below), whose sum is σ = 1668885120. Its totient is φ = 856966656.

The previous prime is 1225135013. The next prime is 1225135049. The reversal of 1225135015 is 5105315221.

It is not a de Polignac number, because 1225135015 - 2¹ = 1225135013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225135013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93774 + ... + 106036.

It is an arithmetic number, because the mean of its divisors is an integer number (52152660).

Almost surely, 2^1225135015 is an apocalyptic number.

1225135015 is a deficient number, since it is larger than the sum of its proper divisors (443750105).

1225135015 is a wasteful number, since it uses less digits than its factorization.

1225135015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12363.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1225135015 is about 35001.9287325713. The cubic root of 1225135015 is about 1070.0267891508.

The spelling of 1225135015 in words is "one billion, two hundred twenty-five million, one hundred thirty-five thousand, fifteen".