120342154 has 4 divisors (see below), whose sum is σ = 180513234. Its totient is φ = 60171076.

The previous prime is 120342139. The next prime is 120342161. The reversal of 120342154 is 451243021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451243021 = 5399 ⋅83579.

It can be written as a sum of positive squares in only one way, i.e., 119311929 + 1030225 = 10923^2 + 1015^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30085537 + ... + 30085540.

Almost surely, 2^120342154 is an apocalyptic number.

120342154 is a deficient number, since it is larger than the sum of its proper divisors (60171080).

120342154 is an equidigital number, since it uses as much as digits as its factorization.

120342154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60171079.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 120342154 is about 10970.0571557308. The cubic root of 120342154 is about 493.7107613105.

Adding to 120342154 its reverse (451243021), we get a palindrome (571585175).

The spelling of 120342154 in words is "one hundred twenty million, three hundred forty-two thousand, one hundred fifty-four".