740147 has 4 divisors (see below), whose sum is σ = 750360. Its totient is φ = 729936.

The previous prime is 740143. The next prime is 740153. The reversal of 740147 is 741047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741047 = 17 ⋅43591.

It is a cyclic number.

It is not a de Polignac number, because 740147 - 2² = 740143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4997 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (187590).

2⁷⁴⁰¹⁴⁷ is an apocalyptic number.

740147 is a deficient number, since it is larger than the sum of its proper divisors (10213).

740147 is a wasteful number, since it uses less digits than its factorization.

740147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 740147 is about 860.3179644759. The cubic root of 740147 is about 90.4564058529.

Subtracting 740147 from its reverse (741047), we obtain a square (900 = 30²).

The spelling of 740147 in words is "seven hundred forty thousand, one hundred forty-seven", and thus it is an iban number.