74145101 has 2 divisors, whose sum is σ = 74145102. Its totient is φ = 74145100.

The previous prime is 74145091. The next prime is 74145119. The reversal of 74145101 is 10154147.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61999876 + 12145225 = 7874^2 + 3485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74145101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74145191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37072550 + 37072551.

It is an arithmetic number, because the mean of its divisors is an integer number (37072551).

Almost surely, 2^74145101 is an apocalyptic number.

It is an amenable number.

74145101 is a deficient number, since it is larger than the sum of its proper divisors (1).

74145101 is an equidigital number, since it uses as much as digits as its factorization.

74145101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 74145101 is about 8610.7549610937. The cubic root of 74145101 is about 420.1078728962.

Adding to 74145101 its reverse (10154147), we get a palindrome (84299248).

The spelling of 74145101 in words is "seventy-four million, one hundred forty-five thousand, one hundred one".