122719641 has 8 divisors (see below), whose sum is σ = 178501344. Its totient is φ = 74375520.

The previous prime is 122719609. The next prime is 122719657. The reversal of 122719641 is 146917221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122719641 - 2⁵ = 122719609 is a prime.

It is a super-2 number, since 2×122719641² = 30120220574337762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3718777 = 122719641 / (1 + 2 + 2 + 7 + 1 + 9 + 6 + 4 + 1).

It is not an unprimeable number, because it can be changed into a prime (122719741) 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 7 ways as a sum of consecutive naturals, for example, 1859356 + ... + 1859421.

It is an arithmetic number, because the mean of its divisors is an integer number (22312668).

Almost surely, 2^122719641 is an apocalyptic number.

122719641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122719641 is a deficient number, since it is larger than the sum of its proper divisors (55781703).

122719641 is a wasteful number, since it uses less digits than its factorization.

122719641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718791.

The product of its digits is 6048, while the sum is 33.

The square root of 122719641 is about 11077.8897358658. The cubic root of 122719641 is about 496.9408426175.

It can be divided in two parts, 12271 and 9641, that added together give a palindrome (21912).

The spelling of 122719641 in words is "one hundred twenty-two million, seven hundred nineteen thousand, six hundred forty-one".