20120465 has 8 divisors (see below), whose sum is σ = 24658560. Its totient is φ = 15753712.

The previous prime is 20120459. The next prime is 20120467. The reversal of 20120465 is 56402102.

It is a happy number.

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 20120465 - 2¹⁰ = 20119441 is a prime.

It is a super-2 number, since 2×20120465² = 809666223632450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20120467) 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, 42575 + ... + 43044.

It is an arithmetic number, because the mean of its divisors is an integer number (3082320).

Almost surely, 2^20120465 is an apocalyptic number.

It is an amenable number.

20120465 is a deficient number, since it is larger than the sum of its proper divisors (4538095).

20120465 is an equidigital number, since it uses as much as digits as its factorization.

20120465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85671.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20120465 is about 4485.5841314148. The cubic root of 20120465 is about 271.9856583052.

Adding to 20120465 its reverse (56402102), we get a palindrome (76522567).

The spelling of 20120465 in words is "twenty million, one hundred twenty thousand, four hundred sixty-five".