74151147 has 8 divisors (see below), whose sum is σ = 112992256. Its totient is φ = 42372072.

The previous prime is 74151131. The next prime is 74151157. The reversal of 74151147 is 74115147.

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

It is not a de Polignac number, because 74151147 - 2⁴ = 74151131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74151157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765483 + ... + 1765524.

It is an arithmetic number, because the mean of its divisors is an integer number (14124032).

Almost surely, 2^74151147 is an apocalyptic number.

74151147 is a deficient number, since it is larger than the sum of its proper divisors (38841109).

74151147 is a wasteful number, since it uses less digits than its factorization.

74151147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531017.

The product of its digits is 3920, while the sum is 30.

The square root of 74151147 is about 8611.1060265218. The cubic root of 74151147 is about 420.1192915116.

The spelling of 74151147 in words is "seventy-four million, one hundred fifty-one thousand, one hundred forty-seven".