1072491253 has 8 divisors (see below), whose sum is σ = 1124674200. Its totient is φ = 1021321728.

The previous prime is 1072491239. The next prime is 1072491293. The reversal of 1072491253 is 3521942701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 120275089 + 952216164 = 10967^2 + 30858^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072491253 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 (1072491293) 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, 251188 + ... + 255421.

It is an arithmetic number, because the mean of its divisors is an integer number (140584275).

Almost surely, 2^1072491253 is an apocalyptic number.

It is an amenable number.

1072491253 is a deficient number, since it is larger than the sum of its proper divisors (52182947).

1072491253 is an equidigital number, since it uses as much as digits as its factorization.

1072491253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506711.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1072491253 is about 32748.9122414776. The cubic root of 1072491253 is about 1023.6022997470.

The spelling of 1072491253 in words is "one billion, seventy-two million, four hundred ninety-one thousand, two hundred fifty-three".