124215461 has 2 divisors, whose sum is σ = 124215462. Its totient is φ = 124215460.

The previous prime is 124215457. The next prime is 124215463. The reversal of 124215461 is 164512421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109851361 + 14364100 = 10481^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 124215461 - 2² = 124215457 is a prime.

Together with 124215463, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124215461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124215463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62107730 + 62107731.

It is an arithmetic number, because the mean of its divisors is an integer number (62107731).

Almost surely, 2^124215461 is an apocalyptic number.

It is an amenable number.

124215461 is a deficient number, since it is larger than the sum of its proper divisors (1).

124215461 is an equidigital number, since it uses as much as digits as its factorization.

124215461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 26.

The square root of 124215461 is about 11145.1990112335. The cubic root of 124215461 is about 498.9517518876.

Adding to 124215461 its reverse (164512421), we get a palindrome (288727882).

The spelling of 124215461 in words is "one hundred twenty-four million, two hundred fifteen thousand, four hundred sixty-one".