201456415 has 4 divisors (see below), whose sum is σ = 241747704. Its totient is φ = 161165128.

The previous prime is 201456413. The next prime is 201456433. The reversal of 201456415 is 514654102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201456415 - 2¹ = 201456413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201456413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20145637 + ... + 20145646.

It is an arithmetic number, because the mean of its divisors is an integer number (60436926).

Almost surely, 2^201456415 is an apocalyptic number.

201456415 is a deficient number, since it is larger than the sum of its proper divisors (40291289).

201456415 is an equidigital number, since it uses as much as digits as its factorization.

201456415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40291288.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 201456415 is about 14193.5342674050. The cubic root of 201456415 is about 586.2196435774.

The spelling of 201456415 in words is "two hundred one million, four hundred fifty-six thousand, four hundred fifteen".