122520542 has 8 divisors (see below), whose sum is σ = 188747976. Its totient is φ = 59604552.

The previous prime is 122520509. The next prime is 122520599. The reversal of 122520542 is 245025221.

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

It is a super-2 number, since 2×122520542² = 30022566423947528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827768 + ... + 827915.

It is an arithmetic number, because the mean of its divisors is an integer number (23593497).

Almost surely, 2^122520542 is an apocalyptic number.

122520542 is a deficient number, since it is larger than the sum of its proper divisors (66227434).

122520542 is a wasteful number, since it uses less digits than its factorization.

122520542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655722.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 122520542 is about 11068.8997646559. The cubic root of 122520542 is about 496.6719533592.

Adding to 122520542 its reverse (245025221), we get a palindrome (367545763).

The spelling of 122520542 in words is "one hundred twenty-two million, five hundred twenty thousand, five hundred forty-two".