261124412 has 6 divisors (see below), whose sum is σ = 456967728. Its totient is φ = 130562204.

The previous prime is 261124411. The next prime is 261124447. The reversal of 261124412 is 214421162.

261124412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261124411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32640548 + ... + 32640555.

It is an arithmetic number, because the mean of its divisors is an integer number (76161288).

Almost surely, 2^261124412 is an apocalyptic number.

It is an amenable number.

261124412 is a deficient number, since it is larger than the sum of its proper divisors (195843316).

261124412 is a wasteful number, since it uses less digits than its factorization.

261124412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65281107 (or 65281105 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 261124412 is about 16159.3444173952. The cubic root of 261124412 is about 639.1691790916.

Adding to 261124412 its reverse (214421162), we get a palindrome (475545574).

The spelling of 261124412 in words is "two hundred sixty-one million, one hundred twenty-four thousand, four hundred twelve".