1972966231 has 2 divisors, whose sum is σ = 1972966232. Its totient is φ = 1972966230.

The previous prime is 1972966199. The next prime is 1972966283. The reversal of 1972966231 is 1326692791.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1326692791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1972966231 - 2⁵ = 1972966199 is a prime.

It is a super-2 number, since 2×1972966231² = 7785191497332690722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1972946231) 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 as a sum of consecutive naturals, namely, 986483115 + 986483116.

It is an arithmetic number, because the mean of its divisors is an integer number (986483116).

Almost surely, 2^1972966231 is an apocalyptic number.

1972966231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972966231 is an equidigital number, since it uses as much as digits as its factorization.

1972966231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 1972966231 is about 44418.0845039495. The cubic root of 1972966231 is about 1254.2185430466.

The spelling of 1972966231 in words is "one billion, nine hundred seventy-two million, nine hundred sixty-six thousand, two hundred thirty-one".