1555140153 has 32 divisors (see below), whose sum is σ = 2392886016. Its totient is φ = 880017408.

The previous prime is 1555140073. The next prime is 1555140163. The reversal of 1555140153 is 3510415551.

1555140153 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1555140153 - 2⁸ = 1555139897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1555140153.

It is not an unprimeable number, because it can be changed into a prime (1555140163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1040875 + ... + 1042367.

It is an arithmetic number, because the mean of its divisors is an integer number (74777688).

Almost surely, 2^1555140153 is an apocalyptic number.

It is an amenable number.

1555140153 is a deficient number, since it is larger than the sum of its proper divisors (837745863).

1555140153 is a wasteful number, since it uses less digits than its factorization.

1555140153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1555140153 is about 39435.2653471484. The cubic root of 1555140153 is about 1158.5723998024.

The spelling of 1555140153 in words is "one billion, five hundred fifty-five million, one hundred forty thousand, one hundred fifty-three".