74201261 has 4 divisors (see below), whose sum is σ = 74226972. Its totient is φ = 74175552.

The previous prime is 74201233. The next prime is 74201269. The reversal of 74201261 is 16210247.

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 70241161 + 3960100 = 8381^2 + 1990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74201261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74201269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886 + ... + 14511.

It is an arithmetic number, because the mean of its divisors is an integer number (18556743).

Almost surely, 2^74201261 is an apocalyptic number.

It is an amenable number.

74201261 is a deficient number, since it is larger than the sum of its proper divisors (25711).

74201261 is a wasteful number, since it uses less digits than its factorization.

74201261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25710.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 74201261 is about 8614.0153819226. The cubic root of 74201261 is about 420.2139140846.

The spelling of 74201261 in words is "seventy-four million, two hundred one thousand, two hundred sixty-one".