158787851 has 4 divisors (see below), whose sum is σ = 160000104. Its totient is φ = 157575600.

The previous prime is 158787833. The next prime is 158787931.

158787851 is nontrivially palindromic in base 10.

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 158787851 - 2¹⁰ = 158786827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158787851.

It is not an unprimeable number, because it can be changed into a prime (158781851) 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, 605930 + ... + 606191.

It is an arithmetic number, because the mean of its divisors is an integer number (40000026).

Almost surely, 2^158787851 is an apocalyptic number.

158787851 is a deficient number, since it is larger than the sum of its proper divisors (1212253).

158787851 is a wasteful number, since it uses less digits than its factorization.

158787851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212252.

The product of its digits is 627200, while the sum is 50.

The square root of 158787851 is about 12601.1051499462. The cubic root of 158787851 is about 541.5090971843.

The spelling of 158787851 in words is "one hundred fifty-eight million, seven hundred eighty-seven thousand, eight hundred fifty-one".