122542651 has 8 divisors (see below), whose sum is σ = 152780544. Its totient is φ = 95487720.

The previous prime is 122542649. The next prime is 122542657. The reversal of 122542651 is 156245221.

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

It is a cyclic number.

It is not a de Polignac number, because 122542651 - 2¹ = 122542649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122542657) 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 in 7 ways as a sum of consecutive naturals, for example, 795655 + ... + 795808.

It is an arithmetic number, because the mean of its divisors is an integer number (19097568).

Almost surely, 2^122542651 is an apocalyptic number.

122542651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122542651 is a deficient number, since it is larger than the sum of its proper divisors (30237893).

122542651 is a wasteful number, since it uses less digits than its factorization.

122542651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591481.

The product of its digits is 4800, while the sum is 28.

The square root of 122542651 is about 11069.8984186848. The cubic root of 122542651 is about 496.7018266077.

Adding to 122542651 its reverse (156245221), we get a palindrome (278787872).

The spelling of 122542651 in words is "one hundred twenty-two million, five hundred forty-two thousand, six hundred fifty-one".