120561495 has 16 divisors (see below), whose sum is σ = 193093632. Its totient is φ = 64234400.

The previous prime is 120561491. The next prime is 120561557. The reversal of 120561495 is 594165021.

It is not a de Polignac number, because 120561495 - 2² = 120561491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120561491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13774 + ... + 20756.

It is an arithmetic number, because the mean of its divisors is an integer number (12068352).

Almost surely, 2^120561495 is an apocalyptic number.

120561495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120561495 is a deficient number, since it is larger than the sum of its proper divisors (72532137).

120561495 is a wasteful number, since it uses less digits than its factorization.

120561495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8142.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 120561495 is about 10980.0498632748. The cubic root of 120561495 is about 494.0105323745.

It can be divided in two parts, 120561 and 495, that multiplied together give a palindrome (59677695).

The spelling of 120561495 in words is "one hundred twenty million, five hundred sixty-one thousand, four hundred ninety-five".