1540252232201 has 16 divisors (see below), whose sum is σ = 1575967760640. Its totient is φ = 1505039131200.

The previous prime is 1540252232161. The next prime is 1540252232203. The reversal of 1540252232201 is 1022322520451.

It is a happy number.

It is not a de Polignac number, because 1540252232201 - 2²² = 1540248037897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540252232203) 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, 2795420 + ... + 3300738.

It is an arithmetic number, because the mean of its divisors is an integer number (98497985040).

Almost surely, 2^{1540252232201} is an apocalyptic number.

It is an amenable number.

1540252232201 is a deficient number, since it is larger than the sum of its proper divisors (35715528439).

1540252232201 is a wasteful number, since it uses less digits than its factorization.

1540252232201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505816.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 1540252232201 its reverse (1022322520451), we get a palindrome (2562574752652).

The spelling of 1540252232201 in words is "one trillion, five hundred forty billion, two hundred fifty-two million, two hundred thirty-two thousand, two hundred one".