126463261 has 2 divisors, whose sum is σ = 126463262. Its totient is φ = 126463260.

The previous prime is 126463243. The next prime is 126463273. The reversal of 126463261 is 162364621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90535225 + 35928036 = 9515^2 + 5994^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126463261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126463231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63231630 + 63231631.

It is an arithmetic number, because the mean of its divisors is an integer number (63231631).

Almost surely, 2^126463261 is an apocalyptic number.

It is an amenable number.

126463261 is a deficient number, since it is larger than the sum of its proper divisors (1).

126463261 is an equidigital number, since it uses as much as digits as its factorization.

126463261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 126463261 is about 11245.5885128347. The cubic root of 126463261 is about 501.9434508768.

The spelling of 126463261 in words is "one hundred twenty-six million, four hundred sixty-three thousand, two hundred sixty-one".