74938151 has 2 divisors, whose sum is σ = 74938152. Its totient is φ = 74938150.

The previous prime is 74938139. The next prime is 74938153. The reversal of 74938151 is 15183947.

It is a strong prime.

It is an emirp because it is prime and its reverse (15183947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74938151 - 2¹⁰ = 74937127 is a prime.

Together with 74938153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74938153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37469075 + 37469076.

It is an arithmetic number, because the mean of its divisors is an integer number (37469076).

Almost surely, 2^74938151 is an apocalyptic number.

74938151 is a deficient number, since it is larger than the sum of its proper divisors (1).

74938151 is an equidigital number, since it uses as much as digits as its factorization.

74938151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 74938151 is about 8656.6824476817. The cubic root of 74938151 is about 421.6003775110.

The spelling of 74938151 in words is "seventy-four million, nine hundred thirty-eight thousand, one hundred fifty-one".