1252203405 has 8 divisors (see below), whose sum is σ = 2003525472. Its totient is φ = 667841808.

The previous prime is 1252203377. The next prime is 1252203451. The reversal of 1252203405 is 5043022521.

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

It is not a de Polignac number, because 1252203405 - 2⁹ = 1252202893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41740099 + ... + 41740128.

It is an arithmetic number, because the mean of its divisors is an integer number (250440684).

Almost surely, 2^1252203405 is an apocalyptic number.

1252203405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252203405 is a deficient number, since it is larger than the sum of its proper divisors (751322067).

1252203405 is an equidigital number, since it uses as much as digits as its factorization.

1252203405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83480235.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1252203405 is about 35386.4861917654. The cubic root of 1252203405 is about 1077.8499190993.

Adding to 1252203405 its reverse (5043022521), we get a palindrome (6295225926).

The spelling of 1252203405 in words is "one billion, two hundred fifty-two million, two hundred three thousand, four hundred five".