1155114402 has 64 divisors (see below), whose sum is σ = 2698665984. Its totient is φ = 326338560.

The previous prime is 1155114319. The next prime is 1155114413. The reversal of 1155114402 is 2044115511.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43743 + ... + 64989.

It is an arithmetic number, because the mean of its divisors is an integer number (42166656).

Almost surely, 2^1155114402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155114402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349332992).

1155114402 is an abundant number, since it is smaller than the sum of its proper divisors (1543551582).

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

1155114402 is a wasteful number, since it uses less digits than its factorization.

1155114402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1155114402 is about 33986.9740047566. The cubic root of 1155114402 is about 1049.2403884680.

Adding to 1155114402 its reverse (2044115511), we get a palindrome (3199229913).

The spelling of 1155114402 in words is "one billion, one hundred fifty-five million, one hundred fourteen thousand, four hundred two".