1115402154 has 16 divisors (see below), whose sum is σ = 2244492192. Its totient is φ = 369519408.

The previous prime is 1115402153. The next prime is 1115402159. The reversal of 1115402154 is 4512045111.

It is not an unprimeable number, because it can be changed into a prime (1115402153) 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, 569269 + ... + 571224.

It is an arithmetic number, because the mean of its divisors is an integer number (140280762).

Almost surely, 2^1115402154 is an apocalyptic number.

1115402154 is an abundant number, since it is smaller than the sum of its proper divisors (1129090038).

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

1115402154 is a wasteful number, since it uses less digits than its factorization.

1115402154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140661.

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

The square root of 1115402154 is about 33397.6369523354. The cubic root of 1115402154 is about 1037.0757827106.

Adding to 1115402154 its reverse (4512045111), we get a palindrome (5627447265).

The spelling of 1115402154 in words is "one billion, one hundred fifteen million, four hundred two thousand, one hundred fifty-four".