120641554 has 16 divisors (see below), whose sum is σ = 209026656. Its totient is φ = 51611200.

The previous prime is 120641501. The next prime is 120641581. The reversal of 120641554 is 455146021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160912 + ... + 161659.

It is an arithmetic number, because the mean of its divisors is an integer number (13064166).

Almost surely, 2^120641554 is an apocalyptic number.

120641554 is a deficient number, since it is larger than the sum of its proper divisors (88385102).

120641554 is a wasteful number, since it uses less digits than its factorization.

120641554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322601.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 120641554 is about 10983.6949156466. The cubic root of 120641554 is about 494.1198576004.

Adding to 120641554 its reverse (455146021), we get a palindrome (575787575).

The spelling of 120641554 in words is "one hundred twenty million, six hundred forty-one thousand, five hundred fifty-four".