74158197 has 8 divisors (see below), whose sum is σ = 104081760. Its totient is φ = 46836720.

The previous prime is 74158193. The next prime is 74158207. The reversal of 74158197 is 79185147.

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

It is not a de Polignac number, because 74158197 - 2² = 74158193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74158193) 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, 650454 + ... + 650567.

It is an arithmetic number, because the mean of its divisors is an integer number (13010220).

Almost surely, 2^74158197 is an apocalyptic number.

It is an amenable number.

74158197 is a deficient number, since it is larger than the sum of its proper divisors (29923563).

74158197 is a wasteful number, since it uses less digits than its factorization.

74158197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301043.

The product of its digits is 70560, while the sum is 42.

The square root of 74158197 is about 8611.5153718727. The cubic root of 74158197 is about 420.1326055207.

The spelling of 74158197 in words is "seventy-four million, one hundred fifty-eight thousand, one hundred ninety-seven".