1262552101 has 2 divisors, whose sum is σ = 1262552102. Its totient is φ = 1262552100.

The previous prime is 1262552099. The next prime is 1262552119. The reversal of 1262552101 is 1012552621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235522500 + 27029601 = 35150^2 + 5199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262552101 - 2¹ = 1262552099 is a prime.

Together with 1262552099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262552191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631276050 + 631276051.

It is an arithmetic number, because the mean of its divisors is an integer number (631276051).

Almost surely, 2^1262552101 is an apocalyptic number.

It is an amenable number.

1262552101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262552101 is an equidigital number, since it uses as much as digits as its factorization.

1262552101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1262552101 is about 35532.4091640294. The cubic root of 1262552101 is about 1080.8110337429.

The spelling of 1262552101 in words is "one billion, two hundred sixty-two million, five hundred fifty-two thousand, one hundred one".