120213645 has 8 divisors (see below), whose sum is σ = 192341856. Its totient is φ = 64113936.

The previous prime is 120213637. The next prime is 120213659. The reversal of 120213645 is 546312021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120213645 - 2³ = 120213637 is a prime.

It is a super-3 number, since 3×120213645³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4007107 + ... + 4007136.

It is an arithmetic number, because the mean of its divisors is an integer number (24042732).

Almost surely, 2^120213645 is an apocalyptic number.

120213645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120213645 is a deficient number, since it is larger than the sum of its proper divisors (72128211).

120213645 is an equidigital number, since it uses as much as digits as its factorization.

120213645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014251.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 120213645 is about 10964.1983291073. The cubic root of 120213645 is about 493.5349601427.

Adding to 120213645 its reverse (546312021), we get a palindrome (666525666).

The spelling of 120213645 in words is "one hundred twenty million, two hundred thirteen thousand, six hundred forty-five".