1225415515 has 8 divisors (see below), whose sum is σ = 1471160880. Its totient is φ = 979890912.

The previous prime is 1225415509. The next prime is 1225415557. The reversal of 1225415515 is 5155145221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225415515 - 2²⁷ = 1091197787 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42720 + ... + 65389.

It is an arithmetic number, because the mean of its divisors is an integer number (183895110).

Almost surely, 2^1225415515 is an apocalyptic number.

1225415515 is a deficient number, since it is larger than the sum of its proper divisors (245745365).

1225415515 is a wasteful number, since it uses less digits than its factorization.

1225415515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110381.

The product of its digits is 10000, while the sum is 31.

The square root of 1225415515 is about 35005.9354252961. The cubic root of 1225415515 is about 1070.1084453512.

The spelling of 1225415515 in words is "one billion, two hundred twenty-five million, four hundred fifteen thousand, five hundred fifteen".