158987455 has 16 divisors (see below), whose sum is σ = 208656000. Its totient is φ = 115334560.

The previous prime is 158987453. The next prime is 158987461. The reversal of 158987455 is 554789851.

It is not a de Polignac number, because 158987455 - 2¹ = 158987453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158987453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19596 + ... + 26494.

It is an arithmetic number, because the mean of its divisors is an integer number (13041000).

Almost surely, 2^158987455 is an apocalyptic number.

158987455 is a deficient number, since it is larger than the sum of its proper divisors (49668545).

158987455 is a wasteful number, since it uses less digits than its factorization.

158987455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7334.

The product of its digits is 2016000, while the sum is 52.

The square root of 158987455 is about 12609.0227614990. The cubic root of 158987455 is about 541.7359032076.

The spelling of 158987455 in words is "one hundred fifty-eight million, nine hundred eighty-seven thousand, four hundred fifty-five".