74616145 has 8 divisors (see below), whose sum is σ = 94806504. Its totient is φ = 56181504.

The previous prime is 74616131. The next prime is 74616193. The reversal of 74616145 is 54161647.

It can be written as a sum of positive squares in 4 ways, for example, as 501264 + 74114881 = 708^2 + 8609^2 .

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 74616145 - 2²³ = 66227537 is a prime.

It is a super-2 number, since 2×74616145² = 11135138189322050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74616145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438834 + ... + 439003.

It is an arithmetic number, because the mean of its divisors is an integer number (11850813).

Almost surely, 2^74616145 is an apocalyptic number.

It is an amenable number.

74616145 is a deficient number, since it is larger than the sum of its proper divisors (20190359).

74616145 is a wasteful number, since it uses less digits than its factorization.

74616145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877859.

The product of its digits is 20160, while the sum is 34.

The square root of 74616145 is about 8638.0637297950. The cubic root of 74616145 is about 420.9956443036.

The spelling of 74616145 in words is "seventy-four million, six hundred sixteen thousand, one hundred forty-five".