74230145 has 16 divisors (see below), whose sum is σ = 98547840. Its totient is φ = 53222400.

The previous prime is 74230129. The next prime is 74230181. The reversal of 74230145 is 54103247.

It is not a de Polignac number, because 74230145 - 2⁴ = 74230129 is a prime.

It is a super-2 number, since 2×74230145² = 11020228853442050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5600 + ... + 13409.

It is an arithmetic number, because the mean of its divisors is an integer number (6159240).

Almost surely, 2^74230145 is an apocalyptic number.

It is an amenable number.

74230145 is a deficient number, since it is larger than the sum of its proper divisors (24317695).

74230145 is a wasteful number, since it uses less digits than its factorization.

74230145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19096.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 74230145 is about 8615.6917888235. The cubic root of 74230145 is about 420.2684319548.

The spelling of 74230145 in words is "seventy-four million, two hundred thirty thousand, one hundred forty-five".