1225134699 has 32 divisors (see below), whose sum is σ = 1753145856. Its totient is φ = 758315520.

The previous prime is 1225134689. The next prime is 1225134707. The reversal of 1225134699 is 9964315221.

It is not a de Polignac number, because 1225134699 - 2⁴ = 1225134683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225134699.

It is not an unprimeable number, because it can be changed into a prime (1225134679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2515434 + ... + 2515920.

It is an arithmetic number, because the mean of its divisors is an integer number (54785808).

Almost surely, 2^1225134699 is an apocalyptic number.

1225134699 is a deficient number, since it is larger than the sum of its proper divisors (528011157).

1225134699 is a wasteful number, since it uses less digits than its factorization.

1225134699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its digits is 116640, while the sum is 42.

The square root of 1225134699 is about 35001.9242185340. The cubic root of 1225134699 is about 1070.0266971532.

The spelling of 1225134699 in words is "one billion, two hundred twenty-five million, one hundred thirty-four thousand, six hundred ninety-nine".