157663543 has 4 divisors (see below), whose sum is σ = 158630968. Its totient is φ = 156696120.

The previous prime is 157663511. The next prime is 157663579. The reversal of 157663543 is 345366751.

157663543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 157663543 - 2⁵ = 157663511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157663496 and 157663505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157663243) 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, 483468 + ... + 483793.

It is an arithmetic number, because the mean of its divisors is an integer number (39657742).

Almost surely, 2^157663543 is an apocalyptic number.

157663543 is a deficient number, since it is larger than the sum of its proper divisors (967425).

157663543 is an equidigital number, since it uses as much as digits as its factorization.

157663543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967424.

The product of its digits is 226800, while the sum is 40.

The square root of 157663543 is about 12556.4144165442. The cubic root of 157663543 is about 540.2280049959.

The spelling of 157663543 in words is "one hundred fifty-seven million, six hundred sixty-three thousand, five hundred forty-three".