1264082101 has 2 divisors, whose sum is σ = 1264082102. Its totient is φ = 1264082100.

The previous prime is 1264082087. The next prime is 1264082123. The reversal of 1264082101 is 1012804621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 738480625 + 525601476 = 27175^2 + 22926^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264082101 - 2²¹ = 1261984949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1264082161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632041050 + 632041051.

It is an arithmetic number, because the mean of its divisors is an integer number (632041051).

Almost surely, 2^1264082101 is an apocalyptic number.

It is an amenable number.

1264082101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264082101 is an equidigital number, since it uses as much as digits as its factorization.

1264082101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1264082101 is about 35553.9322860355. The cubic root of 1264082101 is about 1081.2474443411.

Adding to 1264082101 its reverse (1012804621), we get a palindrome (2276886722).

The spelling of 1264082101 in words is "one billion, two hundred sixty-four million, eighty-two thousand, one hundred one".