1066951253 has 4 divisors (see below), whose sum is σ = 1067030688. Its totient is φ = 1066871820.

The previous prime is 1066951247. The next prime is 1066951261. The reversal of 1066951253 is 3521596601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1066951253 - 2⁶ = 1066951189 is a prime.

It is a super-2 number, since 2×1066951253² = 2276769952556540018, 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 (1066951243) 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, 14033 + ... + 48278.

It is an arithmetic number, because the mean of its divisors is an integer number (266757672).

Almost surely, 2^1066951253 is an apocalyptic number.

It is an amenable number.

1066951253 is a deficient number, since it is larger than the sum of its proper divisors (79435).

1066951253 is an equidigital number, since it uses as much as digits as its factorization.

1066951253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79434.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 1066951253 is about 32664.2197672009. The cubic root of 1066951253 is about 1021.8367689413.

The spelling of 1066951253 in words is "one billion, sixty-six million, nine hundred fifty-one thousand, two hundred fifty-three".