1552355143 has 2 divisors, whose sum is σ = 1552355144. Its totient is φ = 1552355142.

The previous prime is 1552355111. The next prime is 1552355149. The reversal of 1552355143 is 3415532551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1552355143 - 2⁵ = 1552355111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1552355099 and 1552355108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552355149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776177571 + 776177572.

It is an arithmetic number, because the mean of its divisors is an integer number (776177572).

Almost surely, 2^1552355143 is an apocalyptic number.

1552355143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552355143 is an equidigital number, since it uses as much as digits as its factorization.

1552355143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 34.

The square root of 1552355143 is about 39399.9383628960. The cubic root of 1552355143 is about 1157.8803799089.

Adding to 1552355143 its reverse (3415532551), we get a palindrome (4967887694).

The spelling of 1552355143 in words is "one billion, five hundred fifty-two million, three hundred fifty-five thousand, one hundred forty-three".