158146978 has 8 divisors (see below), whose sum is σ = 258786000. Its totient is φ = 71884980.

The previous prime is 158146951. The next prime is 158146979. The reversal of 158146978 is 879641851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (158146979) 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, 3594228 + ... + 3594271.

It is an arithmetic number, because the mean of its divisors is an integer number (32348250).

Almost surely, 2^158146978 is an apocalyptic number.

158146978 is a deficient number, since it is larger than the sum of its proper divisors (100639022).

158146978 is a wasteful number, since it uses less digits than its factorization.

158146978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188512.

The product of its digits is 483840, while the sum is 49.

The square root of 158146978 is about 12575.6502018782. The cubic root of 158146978 is about 540.7795986878.

The spelling of 158146978 in words is "one hundred fifty-eight million, one hundred forty-six thousand, nine hundred seventy-eight".