201420465 has 16 divisors (see below), whose sum is σ = 322988928. Its totient is φ = 107185536.

The previous prime is 201420449. The next prime is 201420467. The reversal of 201420465 is 564024102.

It is not a de Polignac number, because 201420465 - 2⁴ = 201420449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201420467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7837 + ... + 21546.

It is an arithmetic number, because the mean of its divisors is an integer number (20186808).

Almost surely, 2^201420465 is an apocalyptic number.

It is an amenable number.

201420465 is a deficient number, since it is larger than the sum of its proper divisors (121568463).

201420465 is a wasteful number, since it uses less digits than its factorization.

201420465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29848.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 201420465 is about 14192.2677891872. The cubic root of 201420465 is about 586.1847711048.

Adding to 201420465 its reverse (564024102), we get a palindrome (765444567).

The spelling of 201420465 in words is "two hundred one million, four hundred twenty thousand, four hundred sixty-five".