2312155142 has 32 divisors (see below), whose sum is σ = 4037713920. Its totient is φ = 981348480.

The previous prime is 2312155141. The next prime is 2312155151. The reversal of 2312155142 is 2415512132.

It is a super-2 number, since 2×2312155142² = 10692122801354080328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312155141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23159 + ... + 71837.

It is an arithmetic number, because the mean of its divisors is an integer number (126178560).

Almost surely, 2^2312155142 is an apocalyptic number.

2312155142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2312155142 is a deficient number, since it is larger than the sum of its proper divisors (1725558778).

2312155142 is a wasteful number, since it uses less digits than its factorization.

2312155142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48836.

The product of its digits is 2400, while the sum is 26.

The square root of 2312155142 is about 48084.8743577437. The cubic root of 2312155142 is about 1322.3273797206.

Adding to 2312155142 its reverse (2415512132), we get a palindrome (4727667274).

The spelling of 2312155142 in words is "two billion, three hundred twelve million, one hundred fifty-five thousand, one hundred forty-two".