1293072225 has 24 divisors (see below), whose sum is σ = 2183372160. Its totient is φ = 674963520.

The previous prime is 1293072223. The next prime is 1293072239. The reversal of 1293072225 is 5222703921.

It is not a de Polignac number, because 1293072225 - 2¹ = 1293072223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1293072223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179890 + ... + 186939.

It is an arithmetic number, because the mean of its divisors is an integer number (90973840).

Almost surely, 2^1293072225 is an apocalyptic number.

1293072225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1293072225 is a deficient number, since it is larger than the sum of its proper divisors (890299935).

1293072225 is a wasteful number, since it uses less digits than its factorization.

1293072225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366889 (or 366884 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1293072225 is about 35959.3134667502. The cubic root of 1293072225 is about 1089.4507304706.

The spelling of 1293072225 in words is "one billion, two hundred ninety-three million, seventy-two thousand, two hundred twenty-five".