201452120145 has 64 divisors (see below), whose sum is σ = 366993849600. Its totient is φ = 104785850880.

The previous prime is 201452120141. The next prime is 201452120197. The reversal of 201452120145 is 541021254102.

It is a happy number.

201452120145 is a `hidden beast` number, since 2 + 0 + 1 + 452 + 1 + 201 + 4 + 5 = 666.

It is not a de Polignac number, because 201452120145 - 2² = 201452120141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201452120141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32337891 + ... + 32344119.

It is an arithmetic number, because the mean of its divisors is an integer number (5734278900).

Almost surely, 2^201452120145 is an apocalyptic number.

It is an amenable number.

201452120145 is a deficient number, since it is larger than the sum of its proper divisors (165541729455).

201452120145 is a wasteful number, since it uses less digits than its factorization.

201452120145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12127 (or 12121 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 201452120145 its reverse (541021254102), we get a palindrome (742473374247).

The spelling of 201452120145 in words is "two hundred one billion, four hundred fifty-two million, one hundred twenty thousand, one hundred forty-five".