1153145553 has 16 divisors (see below), whose sum is σ = 1773298560. Its totient is φ = 652893696.

The previous prime is 1153145551. The next prime is 1153145561. The reversal of 1153145553 is 3555413511.

It is not a de Polignac number, because 1153145553 - 2¹ = 1153145551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153145551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249600 + ... + 254177.

It is an arithmetic number, because the mean of its divisors is an integer number (110831160).

Almost surely, 2^1153145553 is an apocalyptic number.

It is an amenable number.

1153145553 is a deficient number, since it is larger than the sum of its proper divisors (620153007).

1153145553 is a wasteful number, since it uses less digits than its factorization.

1153145553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503896.

The product of its digits is 22500, while the sum is 33.

The square root of 1153145553 is about 33957.9968932209. The cubic root of 1153145553 is about 1048.6439192094.

The spelling of 1153145553 in words is "one billion, one hundred fifty-three million, one hundred forty-five thousand, five hundred fifty-three".