158051385 has 16 divisors (see below), whose sum is σ = 280980480. Its totient is φ = 84294000.

The previous prime is 158051381. The next prime is 158051393. The reversal of 158051385 is 583150851.

It is not a de Polignac number, because 158051385 - 2² = 158051381 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158051381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585241 + ... + 585510.

It is an arithmetic number, because the mean of its divisors is an integer number (17561280).

Almost surely, 2^158051385 is an apocalyptic number.

158051385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158051385 is a deficient number, since it is larger than the sum of its proper divisors (122929095).

158051385 is a wasteful number, since it uses less digits than its factorization.

158051385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170765 (or 1170759 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 158051385 is about 12571.8489093689. The cubic root of 158051385 is about 540.6706174433.

The spelling of 158051385 in words is "one hundred fifty-eight million, fifty-one thousand, three hundred eighty-five".