1270421253 has 12 divisors (see below), whose sum is σ = 1903018208. Its totient is φ = 846947340.

The previous prime is 1270421249. The next prime is 1270421267. The reversal of 1270421253 is 3521240721.

It is not a de Polignac number, because 1270421253 - 2² = 1270421249 is a prime.

It is a super-2 number, since 2×1270421253² = 3227940320148180018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270421293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2613793 + ... + 2614278.

Almost surely, 2^1270421253 is an apocalyptic number.

It is an amenable number.

1270421253 is a deficient number, since it is larger than the sum of its proper divisors (632596955).

1270421253 is an frugal number, since it uses more digits than its factorization.

1270421253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228086 (or 5228074 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1270421253 is about 35642.9691944989. The cubic root of 1270421253 is about 1083.0518540867.

Adding to 1270421253 its reverse (3521240721), we get a palindrome (4791661974).

The spelling of 1270421253 in words is "one billion, two hundred seventy million, four hundred twenty-one thousand, two hundred fifty-three".