120401650 has 24 divisors (see below), whose sum is σ = 237122100. Its totient is φ = 45327360.

The previous prime is 120401647. The next prime is 120401653. The reversal of 120401650 is 56104021.

It is an interprime number because it is at equal distance from previous prime (120401647) and next prime (120401653).

It can be written as a sum of positive squares in 6 ways, for example, as 95511529 + 24890121 = 9773^2 + 4989^2 .

It is not an unprimeable number, because it can be changed into a prime (120401653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69975 + ... + 71674.

Almost surely, 2^120401650 is an apocalyptic number.

120401650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120401650 is a deficient number, since it is larger than the sum of its proper divisors (116720450).

120401650 is a wasteful number, since it uses less digits than its factorization.

120401650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141678 (or 141673 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 120401650 is about 10972.7685658634. The cubic root of 120401650 is about 493.7921098519.

Adding to 120401650 its reverse (56104021), we get a palindrome (176505671).

The spelling of 120401650 in words is "one hundred twenty million, four hundred one thousand, six hundred fifty".