122622645 has 16 divisors (see below), whose sum is σ = 196473600. Its totient is φ = 65306304.

The previous prime is 122622641. The next prime is 122622653. The reversal of 122622645 is 546226221.

It is a happy number.

It is not a de Polignac number, because 122622645 - 2² = 122622641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122622641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5956 + ... + 16754.

It is an arithmetic number, because the mean of its divisors is an integer number (12279600).

Almost surely, 2^122622645 is an apocalyptic number.

122622645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122622645 is a deficient number, since it is larger than the sum of its proper divisors (73850955).

122622645 is a wasteful number, since it uses less digits than its factorization.

122622645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11564.

The product of its digits is 11520, while the sum is 30.

The square root of 122622645 is about 11073.5109608471. The cubic root of 122622645 is about 496.8098829266.

Adding to 122622645 its reverse (546226221), we get a palindrome (668848866).

It can be divided in two parts, 1226 and 22645, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 122622645 in words is "one hundred twenty-two million, six hundred twenty-two thousand, six hundred forty-five".