1553153387 has 2 divisors, whose sum is σ = 1553153388. Its totient is φ = 1553153386.

The previous prime is 1553153321. The next prime is 1553153389. The reversal of 1553153387 is 7833513551.

It is a strong prime.

It is an emirp because it is prime and its reverse (7833513551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1553153387 - 2¹⁸ = 1552891243 is a prime.

Together with 1553153389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1553153389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776576693 + 776576694.

It is an arithmetic number, because the mean of its divisors is an integer number (776576694).

Almost surely, 2^1553153387 is an apocalyptic number.

1553153387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553153387 is an equidigital number, since it uses as much as digits as its factorization.

1553153387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 41.

The square root of 1553153387 is about 39410.0670768270. The cubic root of 1553153387 is about 1158.0788123124.

The spelling of 1553153387 in words is "one billion, five hundred fifty-three million, one hundred fifty-three thousand, three hundred eighty-seven".