158989763 has 8 divisors (see below), whose sum is σ = 168505920. Its totient is φ = 149491840.

The previous prime is 158989751. The next prime is 158989781. The reversal of 158989763 is 367989851.

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 158989763 - 2¹² = 158985667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158989699 and 158989708.

It is not an unprimeable number, because it can be changed into a prime (158989723) 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, 16118 + ... + 24036.

It is an arithmetic number, because the mean of its divisors is an integer number (21063240).

Almost surely, 2^158989763 is an apocalyptic number.

158989763 is a deficient number, since it is larger than the sum of its proper divisors (9516157).

158989763 is a wasteful number, since it uses less digits than its factorization.

158989763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117.

The product of its digits is 3265920, while the sum is 56.

The square root of 158989763 is about 12609.1142829304. The cubic root of 158989763 is about 541.7385246312.

The spelling of 158989763 in words is "one hundred fifty-eight million, nine hundred eighty-nine thousand, seven hundred sixty-three".