1066023251 has 16 divisors (see below), whose sum is σ = 1133290560. Its totient is φ = 1000581120.

The previous prime is 1066023229. The next prime is 1066023271. The reversal of 1066023251 is 1523206601.

It is a cyclic number.

It is not a de Polignac number, because 1066023251 - 2⁶ = 1066023187 is a prime.

It is a super-2 number, since 2×1066023251² = 2272811143345218002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066023251.

It is not an unprimeable number, because it can be changed into a prime (1066023271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943655 + ... + 944783.

It is an arithmetic number, because the mean of its divisors is an integer number (70830660).

Almost surely, 2^1066023251 is an apocalyptic number.

1066023251 is a deficient number, since it is larger than the sum of its proper divisors (67267309).

1066023251 is a wasteful number, since it uses less digits than its factorization.

1066023251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1066023251 is about 32650.0115007637. The cubic root of 1066023251 is about 1021.5404287477.

Adding to 1066023251 its reverse (1523206601), we get a palindrome (2589229852).

The spelling of 1066023251 in words is "one billion, sixty-six million, twenty-three thousand, two hundred fifty-one".