740040187 has 2 divisors, whose sum is σ = 740040188. Its totient is φ = 740040186.

The previous prime is 740040083. The next prime is 740040193. The reversal of 740040187 is 781040047.

It is a strong prime.

It is an emirp because it is prime and its reverse (781040047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740040187 - 2¹⁵ = 740007419 is a prime.

It is not a weakly prime, because it can be changed into another prime (740020187) 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, 370020093 + 370020094.

It is an arithmetic number, because the mean of its divisors is an integer number (370020094).

Almost surely, 2^740040187 is an apocalyptic number.

740040187 is a deficient number, since it is larger than the sum of its proper divisors (1).

740040187 is an equidigital number, since it uses as much as digits as its factorization.

740040187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 740040187 is about 27203.6796591932. The cubic root of 740040187 is about 904.5205429173.

The spelling of 740040187 in words is "seven hundred forty million, forty thousand, one hundred eighty-seven".