74645105 has 8 divisors (see below), whose sum is σ = 89657064. Its totient is φ = 59660800.

The previous prime is 74645047. The next prime is 74645107. The reversal of 74645105 is 50154647.

It can be written as a sum of positive squares in 4 ways, for example, as 2446096 + 72199009 = 1564^2 + 8497^2 .

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

It is not a de Polignac number, because 74645105 - 2¹⁰ = 74644081 is a prime.

It is a super-2 number, since 2×74645105² = 11143783400922050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74645107) 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, 416 + ... + 12225.

It is an arithmetic number, because the mean of its divisors is an integer number (11207133).

Almost surely, 2^74645105 is an apocalyptic number.

It is an amenable number.

74645105 is a deficient number, since it is larger than the sum of its proper divisors (15011959).

74645105 is a wasteful number, since it uses less digits than its factorization.

74645105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13827.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 74645105 is about 8639.7398687692. The cubic root of 74645105 is about 421.0501028343.

The spelling of 74645105 in words is "seventy-four million, six hundred forty-five thousand, one hundred five".