158647397 has 8 divisors (see below), whose sum is σ = 169736160. Its totient is φ = 147832560.

The previous prime is 158647393. The next prime is 158647403. The reversal of 158647397 is 793746851.

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 158647397 - 2² = 158647393 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158647393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67283 + ... + 69600.

It is an arithmetic number, because the mean of its divisors is an integer number (21217020).

Almost surely, 2^158647397 is an apocalyptic number.

It is an amenable number.

158647397 is a deficient number, since it is larger than the sum of its proper divisors (11088763).

158647397 is a wasteful number, since it uses less digits than its factorization.

158647397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136963.

The product of its digits is 1270080, while the sum is 50.

The square root of 158647397 is about 12595.5308343873. The cubic root of 158647397 is about 541.3493881670.

The spelling of 158647397 in words is "one hundred fifty-eight million, six hundred forty-seven thousand, three hundred ninety-seven".