1533722401 has 2 divisors, whose sum is σ = 1533722402. Its totient is φ = 1533722400.

The previous prime is 1533722381. The next prime is 1533722423. The reversal of 1533722401 is 1042273351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1532800801 + 921600 = 39151^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1533722401 - 2⁵ = 1533722369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1533722401.

It is not a weakly prime, because it can be changed into another prime (1533722431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766861200 + 766861201.

It is an arithmetic number, because the mean of its divisors is an integer number (766861201).

Almost surely, 2^1533722401 is an apocalyptic number.

It is an amenable number.

1533722401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533722401 is an equidigital number, since it uses as much as digits as its factorization.

1533722401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1533722401 is about 39162.7680456834. The cubic root of 1533722401 is about 1153.2290848691.

Adding to 1533722401 its reverse (1042273351), we get a palindrome (2575995752).

The spelling of 1533722401 in words is "one billion, five hundred thirty-three million, seven hundred twenty-two thousand, four hundred one".