1155395238 has 16 divisors (see below), whose sum is σ = 2323702080. Its totient is φ = 382979816.

The previous prime is 1155395233. The next prime is 1155395243. The reversal of 1155395238 is 8325935511.

It is an interprime number because it is at equal distance from previous prime (1155395233) and next prime (1155395243).

It is a self number, because there is not a number n which added to its sum of digits gives 1155395238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155395233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536820 + ... + 538967.

It is an arithmetic number, because the mean of its divisors is an integer number (145231380).

Almost surely, 2^1155395238 is an apocalyptic number.

1155395238 is an abundant number, since it is smaller than the sum of its proper divisors (1168306842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155395238 is a wasteful number, since it uses less digits than its factorization.

1155395238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075971.

The product of its digits is 162000, while the sum is 42.

The square root of 1155395238 is about 33991.1052777046. The cubic root of 1155395238 is about 1049.3254134076.

The spelling of 1155395238 in words is "one billion, one hundred fifty-five million, three hundred ninety-five thousand, two hundred thirty-eight".