122045619 has 4 divisors (see below), whose sum is σ = 162727496. Its totient is φ = 81363744.

The previous prime is 122045617. The next prime is 122045621. The reversal of 122045619 is 916540221.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (122045617) and next prime (122045621).

It is not a de Polignac number, because 122045619 - 2¹ = 122045617 is a prime.

It is a super-2 number, since 2×122045619² = 29790266234186322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122045617) 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 in 3 ways as a sum of consecutive naturals, for example, 20340934 + ... + 20340939.

It is an arithmetic number, because the mean of its divisors is an integer number (40681874).

Almost surely, 2^122045619 is an apocalyptic number.

122045619 is a deficient number, since it is larger than the sum of its proper divisors (40681877).

122045619 is an equidigital number, since it uses as much as digits as its factorization.

122045619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40681876.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 122045619 is about 11047.4258992763. The cubic root of 122045619 is about 496.0293771080.

The spelling of 122045619 in words is "one hundred twenty-two million, forty-five thousand, six hundred nineteen".