1144666531 has 2 divisors, whose sum is σ = 1144666532. Its totient is φ = 1144666530.

The previous prime is 1144666489. The next prime is 1144666541. The reversal of 1144666531 is 1356664411.

It is a strong prime.

It is an emirp because it is prime and its reverse (1356664411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144666531 - 2²⁵ = 1111112099 is a prime.

It is a super-2 number, since 2×1144666531² = 2620522934383147922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1144666541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572333265 + 572333266.

It is an arithmetic number, because the mean of its divisors is an integer number (572333266).

Almost surely, 2^1144666531 is an apocalyptic number.

1144666531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144666531 is an equidigital number, since it uses as much as digits as its factorization.

1144666531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 1144666531 is about 33832.9208168612. The cubic root of 1144666531 is about 1046.0673849180.

It can be divided in two parts, 11446 and 66531, that added together give a palindrome (77977).

The spelling of 1144666531 in words is "one billion, one hundred forty-four million, six hundred sixty-six thousand, five hundred thirty-one".