1206931225 has 12 divisors (see below), whose sum is σ = 1513413180. Its totient is φ = 954694400.

The previous prime is 1206931151. The next prime is 1206931289. The reversal of 1206931225 is 5221396021.

It can be written as a sum of positive squares in 6 ways, for example, as 63409369 + 1143521856 = 7963^2 + 33816^2 .

It is not a de Polignac number, because 1206931225 - 2²³ = 1198542617 is a prime.

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, 268996 + ... + 273445.

It is an arithmetic number, because the mean of its divisors is an integer number (126117765).

Almost surely, 2^1206931225 is an apocalyptic number.

It is an amenable number.

1206931225 is a deficient number, since it is larger than the sum of its proper divisors (306481955).

1206931225 is an equidigital number, since it uses as much as digits as its factorization.

1206931225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542540 (or 542535 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1206931225 is about 34740.9157190768. The cubic root of 1206931225 is about 1064.7006219130.

The spelling of 1206931225 in words is "one billion, two hundred six million, nine hundred thirty-one thousand, two hundred twenty-five".