74150641 has 4 divisors (see below), whose sum is σ = 74176884. Its totient is φ = 74124400.

The previous prime is 74150633. The next prime is 74150647. The reversal of 74150641 is 14605147.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32160241 + 41990400 = 5671^2 + 6480^2 .

It is a cyclic number.

It is not a de Polignac number, because 74150641 - 2³ = 74150633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74150647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8290 + ... + 14731.

It is an arithmetic number, because the mean of its divisors is an integer number (18544221).

Almost surely, 2^74150641 is an apocalyptic number.

It is an amenable number.

74150641 is a deficient number, since it is larger than the sum of its proper divisors (26243).

74150641 is a wasteful number, since it uses less digits than its factorization.

74150641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26242.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 74150641 is about 8611.0766458092. The cubic root of 74150641 is about 420.1183358921.

Adding to 74150641 its reverse (14605147), we get a palindrome (88755788).

The spelling of 74150641 in words is "seventy-four million, one hundred fifty thousand, six hundred forty-one".