2231542456 has 32 divisors (see below), whose sum is σ = 4915638000. Its totient is φ = 936311040.

The previous prime is 2231542433. The next prime is 2231542487. The reversal of 2231542456 is 6542451322.

It is a super-3 number, since 3×2231542456³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 974181 + ... + 976468.

Almost surely, 2^2231542456 is an apocalyptic number.

2231542456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2231542456 is an abundant number, since it is smaller than the sum of its proper divisors (2684095544).

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

2231542456 is a wasteful number, since it uses less digits than its factorization.

2231542456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950679 (or 1950675 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 2231542456 is about 47239.2046503749. The cubic root of 2231542456 is about 1306.7777098583. Note that the first 4 decimals are identical.

Adding to 2231542456 its reverse (6542451322), we get a palindrome (8773993778).

The spelling of 2231542456 in words is "two billion, two hundred thirty-one million, five hundred forty-two thousand, four hundred fifty-six".