127342261 has 2 divisors, whose sum is σ = 127342262. Its totient is φ = 127342260.

The previous prime is 127342253. The next prime is 127342273. The reversal of 127342261 is 162243721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87778161 + 39564100 = 9369^2 + 6290^2 .

It is a cyclic number.

It is not a de Polignac number, because 127342261 - 2³ = 127342253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127342561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63671130 + 63671131.

It is an arithmetic number, because the mean of its divisors is an integer number (63671131).

Almost surely, 2^127342261 is an apocalyptic number.

It is an amenable number.

127342261 is a deficient number, since it is larger than the sum of its proper divisors (1).

127342261 is an equidigital number, since it uses as much as digits as its factorization.

127342261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 127342261 is about 11284.6028286334. The cubic root of 127342261 is about 503.1037087861.

Adding to 127342261 its reverse (162243721), we get a palindrome (289585982).

It can be divided in two parts, 1273 and 42261, that added together give a palindrome (43534).

The spelling of 127342261 in words is "one hundred twenty-seven million, three hundred forty-two thousand, two hundred sixty-one".