1252209603 has 4 divisors (see below), whose sum is σ = 1669612808. Its totient is φ = 834806400.

The previous prime is 1252209601. The next prime is 1252209643. The reversal of 1252209603 is 3069022521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1252209603 - 2¹ = 1252209601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252209601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208701598 + ... + 208701603.

It is an arithmetic number, because the mean of its divisors is an integer number (417403202).

Almost surely, 2^1252209603 is an apocalyptic number.

1252209603 is a deficient number, since it is larger than the sum of its proper divisors (417403205).

1252209603 is an equidigital number, since it uses as much as digits as its factorization.

1252209603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417403204.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1252209603 is about 35386.5737674616. The cubic root of 1252209603 is about 1077.8516974320.

The spelling of 1252209603 in words is "one billion, two hundred fifty-two million, two hundred nine thousand, six hundred three".