74180069 has 2 divisors, whose sum is σ = 74180070. Its totient is φ = 74180068.

The previous prime is 74180033. The next prime is 74180077. The reversal of 74180069 is 96008147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 25877569 = 6950^2 + 5087^2 .

It is a cyclic number.

It is not a de Polignac number, because 74180069 - 2¹² = 74175973 is a prime.

It is a super-2 number, since 2×74180069² = 11005365273689522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74180089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37090034 + 37090035.

It is an arithmetic number, because the mean of its divisors is an integer number (37090035).

Almost surely, 2^74180069 is an apocalyptic number.

It is an amenable number.

74180069 is a deficient number, since it is larger than the sum of its proper divisors (1).

74180069 is an equidigital number, since it uses as much as digits as its factorization.

74180069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 74180069 is about 8612.7852057276. The cubic root of 74180069 is about 420.1739056847.

The spelling of 74180069 in words is "seventy-four million, one hundred eighty thousand, sixty-nine".