1533542201 has 2 divisors, whose sum is σ = 1533542202. Its totient is φ = 1533542200.

The previous prime is 1533542189. The next prime is 1533542249. The reversal of 1533542201 is 1022453351.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771506176 + 762036025 = 27776^2 + 27605^2 .

It is an emirp because it is prime and its reverse (1022453351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1533542201 - 2²⁶ = 1466433337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1533542401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766771100 + 766771101.

It is an arithmetic number, because the mean of its divisors is an integer number (766771101).

Almost surely, 2^1533542201 is an apocalyptic number.

It is an amenable number.

1533542201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533542201 is an equidigital number, since it uses as much as digits as its factorization.

1533542201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1533542201 is about 39160.4673235650. The cubic root of 1533542201 is about 1153.1839180644.

Adding to 1533542201 its reverse (1022453351), we get a palindrome (2555995552).

The spelling of 1533542201 in words is "one billion, five hundred thirty-three million, five hundred forty-two thousand, two hundred one".