122142641 has 8 divisors (see below), whose sum is σ = 122930304. Its totient is φ = 121358160.

The previous prime is 122142607. The next prime is 122142667. The reversal of 122142641 is 146241221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122142641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122142341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152855 + ... + 153651.

It is an arithmetic number, because the mean of its divisors is an integer number (15366288).

Almost surely, 2^122142641 is an apocalyptic number.

It is an amenable number.

122142641 is a deficient number, since it is larger than the sum of its proper divisors (787663).

122142641 is an equidigital number, since it uses as much as digits as its factorization.

122142641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591.

The product of its digits is 768, while the sum is 23.

The square root of 122142641 is about 11051.8161855869. The cubic root of 122142641 is about 496.1607842968.

Adding to 122142641 its reverse (146241221), we get a palindrome (268383862).

The spelling of 122142641 in words is "one hundred twenty-two million, one hundred forty-two thousand, six hundred forty-one".