1292536253 has 4 divisors (see below), whose sum is σ = 1293008508. Its totient is φ = 1292064000.

The previous prime is 1292536249. The next prime is 1292536303. The reversal of 1292536253 is 3526352921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 659359684 + 633176569 = 25678^2 + 25163^2 .

It is a cyclic number.

It is not a de Polignac number, because 1292536253 - 2² = 1292536249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292536853) 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, 231998 + ... + 237503.

It is an arithmetic number, because the mean of its divisors is an integer number (323252127).

Almost surely, 2^1292536253 is an apocalyptic number.

It is an amenable number.

1292536253 is a deficient number, since it is larger than the sum of its proper divisors (472255).

1292536253 is an equidigital number, since it uses as much as digits as its factorization.

1292536253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472254.

The product of its digits is 97200, while the sum is 38.

The square root of 1292536253 is about 35951.8602161279. The cubic root of 1292536253 is about 1089.3001857006.

The spelling of 1292536253 in words is "one billion, two hundred ninety-two million, five hundred thirty-six thousand, two hundred fifty-three".