1241542201 has 2 divisors, whose sum is σ = 1241542202. Its totient is φ = 1241542200.

The previous prime is 1241542193. The next prime is 1241542217. The reversal of 1241542201 is 1022451421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1218010000 + 23532201 = 34900^2 + 4851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241542201 - 2³ = 1241542193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1241572201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620771100 + 620771101.

It is an arithmetic number, because the mean of its divisors is an integer number (620771101).

Almost surely, 2^1241542201 is an apocalyptic number.

It is an amenable number.

1241542201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241542201 is an equidigital number, since it uses as much as digits as its factorization.

1241542201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1241542201 is about 35235.5247016417. The cubic root of 1241542201 is about 1074.7822745646.

Adding to 1241542201 its reverse (1022451421), we get a palindrome (2263993622).

The spelling of 1241542201 in words is "one billion, two hundred forty-one million, five hundred forty-two thousand, two hundred one".