1299361925 has 12 divisors (see below), whose sum is σ = 1612084320. Its totient is φ = 1038924720.

The previous prime is 1299361919. The next prime is 1299361933. The reversal of 1299361925 is 5291639921.

It is not a de Polignac number, because 1299361925 - 2¹⁰ = 1299360901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1299361925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36344 + ... + 62606.

It is an arithmetic number, because the mean of its divisors is an integer number (134340360).

Almost surely, 2^1299361925 is an apocalyptic number.

It is an amenable number.

1299361925 is a deficient number, since it is larger than the sum of its proper divisors (312722395).

1299361925 is a wasteful number, since it uses less digits than its factorization.

1299361925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28252 (or 28247 counting only the distinct ones).

The product of its digits is 262440, while the sum is 47.

The square root of 1299361925 is about 36046.6631604092. The cubic root of 1299361925 is about 1091.2142921686.

The spelling of 1299361925 in words is "one billion, two hundred ninety-nine million, three hundred sixty-one thousand, nine hundred twenty-five".