74137087 has 2 divisors, whose sum is σ = 74137088. Its totient is φ = 74137086.

The previous prime is 74137081. The next prime is 74137103. The reversal of 74137087 is 78073147.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74137087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74137081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37068543 + 37068544.

It is an arithmetic number, because the mean of its divisors is an integer number (37068544).

Almost surely, 2^74137087 is an apocalyptic number.

74137087 is a deficient number, since it is larger than the sum of its proper divisors (1).

74137087 is an equidigital number, since it uses as much as digits as its factorization.

74137087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 74137087 is about 8610.2896002399. The cubic root of 74137087 is about 420.0927365138.

The spelling of 74137087 in words is "seventy-four million, one hundred thirty-seven thousand, eighty-seven".