120420658 has 4 divisors (see below), whose sum is σ = 180630990. Its totient is φ = 60210328.

The previous prime is 120420637. The next prime is 120420659. The reversal of 120420658 is 856024021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 856024021 = 499 ⋅1715479.

It can be written as a sum of positive squares in only one way, i.e., 120187369 + 233289 = 10963^2 + 483^2 .

It is a super-2 number, since 2×120420658² = 29002269746305928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120420659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30105163 + ... + 30105166.

Almost surely, 2^120420658 is an apocalyptic number.

120420658 is a deficient number, since it is larger than the sum of its proper divisors (60210332).

120420658 is an equidigital number, since it uses as much as digits as its factorization.

120420658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60210331.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 120420658 is about 10973.6346758948. The cubic root of 120420658 is about 493.8180937332.

Adding to 120420658 its reverse (856024021), we get a palindrome (976444679).

The spelling of 120420658 in words is "one hundred twenty million, four hundred twenty thousand, six hundred fifty-eight".