124492019 has 2 divisors, whose sum is σ = 124492020. Its totient is φ = 124492018.

The previous prime is 124491989. The next prime is 124492091. The reversal of 124492019 is 910294421.

Together with next prime (124492091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124492019 - 2¹⁶ = 124426483 is a prime.

It is a super-2 number, since 2×124492019² = 30996525589392722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124492619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62246009 + 62246010.

It is an arithmetic number, because the mean of its divisors is an integer number (62246010).

Almost surely, 2^124492019 is an apocalyptic number.

124492019 is a deficient number, since it is larger than the sum of its proper divisors (1).

124492019 is an equidigital number, since it uses as much as digits as its factorization.

124492019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 124492019 is about 11157.5991593174. The cubic root of 124492019 is about 499.3217724307.

The spelling of 124492019 in words is "one hundred twenty-four million, four hundred ninety-two thousand, nineteen".