1242331185 has 32 divisors (see below), whose sum is σ = 2139184512. Its totient is φ = 613370880.

The previous prime is 1242331171. The next prime is 1242331187. The reversal of 1242331185 is 5811332421.

It is not a de Polignac number, because 1242331185 - 2²⁸ = 973895729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242331187) 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, 24379 + ... + 55488.

It is an arithmetic number, because the mean of its divisors is an integer number (66849516).

Almost surely, 2^1242331185 is an apocalyptic number.

1242331185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1242331185 is a deficient number, since it is larger than the sum of its proper divisors (896853327).

1242331185 is a wasteful number, since it uses less digits than its factorization.

1242331185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79953.

The product of its digits is 5760, while the sum is 30.

The square root of 1242331185 is about 35246.7187834556. The cubic root of 1242331185 is about 1075.0098964295.

The spelling of 1242331185 in words is "one billion, two hundred forty-two million, three hundred thirty-one thousand, one hundred eighty-five".