1540452102023 has 4 divisors (see below), whose sum is σ = 1545405324528. Its totient is φ = 1535498879520.

The previous prime is 1540452102011. The next prime is 1540452102149. The reversal of 1540452102023 is 3202012540451.

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 1540452102023 - 2⁸ = 1540452101767 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 (1540452102223) 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, 2476610786 + ... + 2476611407.

It is an arithmetic number, because the mean of its divisors is an integer number (386351331132).

Almost surely, 2^{1540452102023} is an apocalyptic number.

1540452102023 is a deficient number, since it is larger than the sum of its proper divisors (4953222505).

1540452102023 is an equidigital number, since it uses as much as digits as its factorization.

1540452102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4953222504.

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

Adding to 1540452102023 its reverse (3202012540451), we get a palindrome (4742464642474).

The spelling of 1540452102023 in words is "one trillion, five hundred forty billion, four hundred fifty-two million, one hundred two thousand, twenty-three".