1264690937 has 2 divisors, whose sum is σ = 1264690938. Its totient is φ = 1264690936.

The previous prime is 1264690927. The next prime is 1264691009. The reversal of 1264690937 is 7390964621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1151991481 + 112699456 = 33941^2 + 10616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1264690937 - 2⁶ = 1264690873 is a prime.

It is a super-2 number, since 2×1264690937² = 3198886332259875938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1264690891 and 1264690900.

It is not a weakly prime, because it can be changed into another prime (1264690927) 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, 632345468 + 632345469.

It is an arithmetic number, because the mean of its divisors is an integer number (632345469).

Almost surely, 2^1264690937 is an apocalyptic number.

It is an amenable number.

1264690937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264690937 is an equidigital number, since it uses as much as digits as its factorization.

1264690937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 1264690937 is about 35562.4934024598. The cubic root of 1264690937 is about 1081.4210081489.

The spelling of 1264690937 in words is "one billion, two hundred sixty-four million, six hundred ninety thousand, nine hundred thirty-seven".