15454535023 has 4 divisors (see below), whose sum is σ = 15534610528. Its totient is φ = 15374459520.

The previous prime is 15454535017. The next prime is 15454535093. The reversal of 15454535023 is 32053545451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15454535023 is a prime.

It is a super-2 number, since 2×15454535023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15454535003) 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, 40037463 + ... + 40037848.

It is an arithmetic number, because the mean of its divisors is an integer number (3883652632).

Almost surely, 2^15454535023 is an apocalyptic number.

15454535023 is a deficient number, since it is larger than the sum of its proper divisors (80075505).

15454535023 is an equidigital number, since it uses as much as digits as its factorization.

15454535023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80075504.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 15454535023 in words is "fifteen billion, four hundred fifty-four million, five hundred thirty-five thousand, twenty-three".