1253452213 has 8 divisors (see below), whose sum is σ = 1357861400. Its totient is φ = 1157030784.

The previous prime is 1253452169. The next prime is 1253452241. The reversal of 1253452213 is 3122543521.

It can be written as a sum of positive squares in 4 ways, for example, as 133679844 + 1119772369 = 11562^2 + 33463^2 .

It is not a de Polignac number, because 1253452213 - 2¹³ = 1253444021 is a prime.

It is a super-2 number, since 2×1253452213² = 3142284900549194738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253452273) 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, 283068 + ... + 287461.

It is an arithmetic number, because the mean of its divisors is an integer number (169732675).

Almost surely, 2^1253452213 is an apocalyptic number.

1253452213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1253452213 is a deficient number, since it is larger than the sum of its proper divisors (104409187).

1253452213 is an frugal number, since it uses more digits than its factorization.

1253452213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570568 (or 570542 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1253452213 is about 35404.1270616859. The cubic root of 1253452213 is about 1078.2081091465.

Adding to 1253452213 its reverse (3122543521), we get a palindrome (4375995734).

The spelling of 1253452213 in words is "one billion, two hundred fifty-three million, four hundred fifty-two thousand, two hundred thirteen".