158963447 has 8 divisors (see below), whose sum is σ = 171896256. Its totient is φ = 146428672.

The previous prime is 158963423. The next prime is 158963449. The reversal of 158963447 is 744369851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158963447 - 2¹⁸ = 158701303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158963449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98678 + ... + 100275.

It is an arithmetic number, because the mean of its divisors is an integer number (21487032).

Almost surely, 2^158963447 is an apocalyptic number.

158963447 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

158963447 is a deficient number, since it is larger than the sum of its proper divisors (12932809).

158963447 is a wasteful number, since it uses less digits than its factorization.

158963447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199017.

The product of its digits is 725760, while the sum is 47.

The square root of 158963447 is about 12608.0707088753. The cubic root of 158963447 is about 541.7086334454.

The spelling of 158963447 in words is "one hundred fifty-eight million, nine hundred sixty-three thousand, four hundred forty-seven".