74121741 has 12 divisors (see below), whose sum is σ = 107748732. Its totient is φ = 49098816.

The previous prime is 74121731. The next prime is 74121757. The reversal of 74121741 is 14712147.

It can be written as a sum of positive squares in 2 ways, for example, as 56025225 + 18096516 = 7485^2 + 4254^2 .

It is not a de Polignac number, because 74121741 - 2¹¹ = 74119693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74121701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24816 + ... + 27641.

It is an arithmetic number, because the mean of its divisors is an integer number (8979061).

Almost surely, 2^74121741 is an apocalyptic number.

It is an amenable number.

74121741 is a deficient number, since it is larger than the sum of its proper divisors (33626991).

74121741 is a wasteful number, since it uses less digits than its factorization.

74121741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52620 (or 52617 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 74121741 is about 8609.3984110390. The cubic root of 74121741 is about 420.0637488269.

Adding to 74121741 its reverse (14712147), we get a palindrome (88833888).

The spelling of 74121741 in words is "seventy-four million, one hundred twenty-one thousand, seven hundred forty-one".