159391137453 has 4 divisors (see below), whose sum is σ = 212521516608. Its totient is φ = 106260758300.

The previous prime is 159391137431. The next prime is 159391137523. The reversal of 159391137453 is 354731193951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354731193951 = 3 ⋅118243731317.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159391137453 is a prime.

It is a super-2 number, since 2×159391137453² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 159391137396 and 159391137405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159391130453) 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, 26565189573 + ... + 26565189578.

It is an arithmetic number, because the mean of its divisors is an integer number (53130379152).

Almost surely, 2^159391137453 is an apocalyptic number.

It is an amenable number.

159391137453 is a deficient number, since it is larger than the sum of its proper divisors (53130379155).

159391137453 is an equidigital number, since it uses as much as digits as its factorization.

159391137453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53130379154.

The product of its digits is 1530900, while the sum is 51.

The spelling of 159391137453 in words is "one hundred fifty-nine billion, three hundred ninety-one million, one hundred thirty-seven thousand, four hundred fifty-three".