1275426101 has 2 divisors, whose sum is σ = 1275426102. Its totient is φ = 1275426100.

The previous prime is 1275426049. The next prime is 1275426133. The reversal of 1275426101 is 1016245721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1015378225 + 260047876 = 31865^2 + 16126^2 .

It is a cyclic number.

It is not a de Polignac number, because 1275426101 - 2¹⁰ = 1275425077 is a prime.

It is a super-2 number, since 2×1275426101² = 3253423478224124402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275426161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637713050 + 637713051.

It is an arithmetic number, because the mean of its divisors is an integer number (637713051).

Almost surely, 2^1275426101 is an apocalyptic number.

It is an amenable number.

1275426101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275426101 is an equidigital number, since it uses as much as digits as its factorization.

1275426101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1275426101 is about 35713.1082517330. The cubic root of 1275426101 is about 1084.4722247878.

The spelling of 1275426101 in words is "one billion, two hundred seventy-five million, four hundred twenty-six thousand, one hundred one".