127621241 has 6 divisors (see below), whose sum is σ = 140278026. Its totient is φ = 116019200.

The previous prime is 127621237. The next prime is 127621259. The reversal of 127621241 is 142126721.

It can be written as a sum of positive squares in only one way, i.e., 127125625 + 495616 = 11275^2 + 704^2 .

It is not a de Polignac number, because 127621241 - 2² = 127621237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127621241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127621231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 527240 + ... + 527481.

It is an arithmetic number, because the mean of its divisors is an integer number (23379671).

Almost surely, 2^127621241 is an apocalyptic number.

127621241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

127621241 is a deficient number, since it is larger than the sum of its proper divisors (12656785).

127621241 is a wasteful number, since it uses less digits than its factorization.

127621241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054743 (or 1054732 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 127621241 is about 11296.9571566860. The cubic root of 127621241 is about 503.4708388063.

Adding to 127621241 its reverse (142126721), we get a palindrome (269747962).

The spelling of 127621241 in words is "one hundred twenty-seven million, six hundred twenty-one thousand, two hundred forty-one".