120601555 has 16 divisors (see below), whose sum is σ = 147188160. Its totient is φ = 94851072.

The previous prime is 120601549. The next prime is 120601561. The reversal of 120601555 is 555106021.

It is an interprime number because it is at equal distance from previous prime (120601549) and next prime (120601561).

It is a cyclic number.

It is not a de Polignac number, because 120601555 - 2⁷ = 120601427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80251 + ... + 81739.

It is an arithmetic number, because the mean of its divisors is an integer number (9199260).

Almost surely, 2^120601555 is an apocalyptic number.

120601555 is a deficient number, since it is larger than the sum of its proper divisors (26586605).

120601555 is a wasteful number, since it uses less digits than its factorization.

120601555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 120601555 is about 10981.8739293438. The cubic root of 120601555 is about 494.0652426847.

Adding to 120601555 its reverse (555106021), we get a palindrome (675707576).

The spelling of 120601555 in words is "one hundred twenty million, six hundred one thousand, five hundred fifty-five".