120545021 has 8 divisors (see below), whose sum is σ = 121840224. Its totient is φ = 119255760.

The previous prime is 120545017. The next prime is 120545027.

120545021 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 120545021 - 2² = 120545017 is a prime.

It is a super-2 number, since 2×120545021² = 29062204175780882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120544984 and 120545002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120545027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47630 + ... + 50096.

It is an arithmetic number, because the mean of its divisors is an integer number (15230028).

Almost surely, 2^120545021 is an apocalyptic number.

It is an amenable number.

120545021 is a deficient number, since it is larger than the sum of its proper divisors (1295203).

120545021 is a wasteful number, since it uses less digits than its factorization.

120545021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 120545021 is about 10979.2996589036. The cubic root of 120545021 is about 493.9880301645.

The spelling of 120545021 in words is "one hundred twenty million, five hundred forty-five thousand, twenty-one".