120878542 has 12 divisors (see below), whose sum is σ = 183062880. Its totient is φ = 59863076.

The previous prime is 120878479. The next prime is 120878543. The reversal of 120878542 is 245878021.

It is a super-2 number, since 2×120878542² = 29223243832091528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120878543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20259 + ... + 25537.

It is an arithmetic number, because the mean of its divisors is an integer number (15255240).

Almost surely, 2^120878542 is an apocalyptic number.

120878542 is a deficient number, since it is larger than the sum of its proper divisors (62184338).

120878542 is an equidigital number, since it uses as much as digits as its factorization.

120878542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 120878542 is about 10994.4777956936. The cubic root of 120878542 is about 494.4431952874.

The spelling of 120878542 in words is "one hundred twenty million, eight hundred seventy-eight thousand, five hundred forty-two".