1553144155 has 16 divisors (see below), whose sum is σ = 1930068000. Its totient is φ = 1198408960.

The previous prime is 1553144141. The next prime is 1553144183. The reversal of 1553144155 is 5514413551.

It is not a de Polignac number, because 1553144155 - 2⁹ = 1553143643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1553144155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147000 + ... + 157210.

It is an arithmetic number, because the mean of its divisors is an integer number (120629250).

Almost surely, 2^1553144155 is an apocalyptic number.

1553144155 is a deficient number, since it is larger than the sum of its proper divisors (376923845).

1553144155 is a wasteful number, since it uses less digits than its factorization.

1553144155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294.

The product of its digits is 30000, while the sum is 34.

The square root of 1553144155 is about 39409.9499492197. The cubic root of 1553144155 is about 1158.0765177537.

The spelling of 1553144155 in words is "one billion, five hundred fifty-three million, one hundred forty-four thousand, one hundred fifty-five".