1253220215 has 8 divisors (see below), whose sum is σ = 1619546208. Its totient is φ = 925454880.

The previous prime is 1253220203. The next prime is 1253220301. The reversal of 1253220215 is 5120223521.

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

It is not a de Polignac number, because 1253220215 - 2⁸ = 1253219959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9640091 + ... + 9640220.

It is an arithmetic number, because the mean of its divisors is an integer number (202443276).

Almost surely, 2^1253220215 is an apocalyptic number.

1253220215 is a deficient number, since it is larger than the sum of its proper divisors (366325993).

1253220215 is a wasteful number, since it uses less digits than its factorization.

1253220215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19280329.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1253220215 is about 35400.8504841339. The cubic root of 1253220215 is about 1078.1415841907.

Adding to 1253220215 its reverse (5120223521), we get a palindrome (6373443736).

The spelling of 1253220215 in words is "one billion, two hundred fifty-three million, two hundred twenty thousand, two hundred fifteen".