122724541 has 2 divisors, whose sum is σ = 122724542. Its totient is φ = 122724540.

The previous prime is 122724533. The next prime is 122724583. The reversal of 122724541 is 145427221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68392900 + 54331641 = 8270^2 + 7371^2 .

It is a cyclic number.

It is not a de Polignac number, because 122724541 - 2³ = 122724533 is a prime.

It is a super-2 number, since 2×122724541² = 30122625927321362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122724341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61362270 + 61362271.

It is an arithmetic number, because the mean of its divisors is an integer number (61362271).

Almost surely, 2^122724541 is an apocalyptic number.

It is an amenable number.

122724541 is a deficient number, since it is larger than the sum of its proper divisors (1).

122724541 is an equidigital number, since it uses as much as digits as its factorization.

122724541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 28.

The square root of 122724541 is about 11078.1108949134. The cubic root of 122724541 is about 496.9474565485.

The spelling of 122724541 in words is "one hundred twenty-two million, seven hundred twenty-four thousand, five hundred forty-one".