1252213207 has 8 divisors (see below), whose sum is σ = 1433750432. Its totient is φ = 1071338400.

The previous prime is 1252213201. The next prime is 1252213241. The reversal of 1252213207 is 7023122521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252213207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252213201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161544 + ... + 169117.

It is an arithmetic number, because the mean of its divisors is an integer number (179218804).

Almost surely, 2^1252213207 is an apocalyptic number.

1252213207 is a deficient number, since it is larger than the sum of its proper divisors (181537225).

1252213207 is an equidigital number, since it uses as much as digits as its factorization.

1252213207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331209.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1252213207 is about 35386.6246906935. The cubic root of 1252213207 is about 1077.8527314905.

Adding to 1252213207 its reverse (7023122521), we get a palindrome (8275335728).

The spelling of 1252213207 in words is "one billion, two hundred fifty-two million, two hundred thirteen thousand, two hundred seven".