1553342101 has 2 divisors, whose sum is σ = 1553342102. Its totient is φ = 1553342100.

The previous prime is 1553342083. The next prime is 1553342111. The reversal of 1553342101 is 1012433551.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1552281201 + 1060900 = 39399^2 + 1030^2 .

It is an emirp because it is prime and its reverse (1012433551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1553342101 - 2⁵ = 1553342069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1553342111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776671050 + 776671051.

It is an arithmetic number, because the mean of its divisors is an integer number (776671051).

Almost surely, 2^1553342101 is an apocalyptic number.

It is an amenable number.

1553342101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553342101 is an equidigital number, since it uses as much as digits as its factorization.

1553342101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1553342101 is about 39412.4612400697. The cubic root of 1553342101 is about 1158.1257140621.

Adding to 1553342101 its reverse (1012433551), we get a palindrome (2565775652).

The spelling of 1553342101 in words is "one billion, five hundred fifty-three million, three hundred forty-two thousand, one hundred one".