120641650 has 12 divisors (see below), whose sum is σ = 224393562. Its totient is φ = 48256640.

The previous prime is 120641627. The next prime is 120641657. The reversal of 120641650 is 56146021.

120641650 = T₁₇₅₆ + T₁₇₅₇ + ... + T₁₈₃₀.

It can be written as a sum of positive squares in 3 ways, for example, as 117483921 + 3157729 = 10839^2 + 1777^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (120641657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206367 + ... + 1206466.

Almost surely, 2^120641650 is an apocalyptic number.

120641650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120641650 is a deficient number, since it is larger than the sum of its proper divisors (103751912).

120641650 is a wasteful number, since it uses less digits than its factorization.

120641650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412845 (or 2412840 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 120641650 is about 10983.6992857598. The cubic root of 120641650 is about 494.1199886649.

Adding to 120641650 its reverse (56146021), we get a palindrome (176787671).

The spelling of 120641650 in words is "one hundred twenty million, six hundred forty-one thousand, six hundred fifty".