122515542 has 48 divisors (see below), whose sum is σ = 272432160. Its totient is φ = 39776256.

The previous prime is 122515529. The next prime is 122515543. The reversal of 122515542 is 245515221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122515543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158934 + ... + 159702.

It is an arithmetic number, because the mean of its divisors is an integer number (5675670).

Almost surely, 2^122515542 is an apocalyptic number.

122515542 is an abundant number, since it is smaller than the sum of its proper divisors (149916618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122515542 is a wasteful number, since it uses less digits than its factorization.

122515542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 994 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 122515542 is about 11068.6739043121. The cubic root of 122515542 is about 496.6651969588.

The spelling of 122515542 in words is "one hundred twenty-two million, five hundred fifteen thousand, five hundred forty-two".