3630139 has 4 divisors (see below), whose sum is σ = 3707424. Its totient is φ = 3552856.

The previous prime is 3630101. The next prime is 3630149. The reversal of 3630139 is 9310363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9310363 = 29 ⋅321047.

It is a cyclic number.

It is not a de Polignac number, because 3630139 - 2²¹ = 1532987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3630149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38572 + ... + 38665.

It is an arithmetic number, because the mean of its divisors is an integer number (926856).

Almost surely, 2^3630139 is an apocalyptic number.

3630139 is a deficient number, since it is larger than the sum of its proper divisors (77285).

3630139 is an equidigital number, since it uses as much as digits as its factorization.

3630139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77284.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 3630139 is about 1905.2923660163. The cubic root of 3630139 is about 153.6883984387.

The spelling of 3630139 in words is "three million, six hundred thirty thousand, one hundred thirty-nine".