1387235 has 16 divisors (see below), whose sum is σ = 1747872. Its totient is φ = 1056000.

The previous prime is 1387231. The next prime is 1387259. The reversal of 1387235 is 5327831.

It is not a de Polignac number, because 1387235 - 2² = 1387231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1387198 and 1387207.

It is not an unprimeable number, because it can be changed into a prime (1387231) 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 15 ways as a sum of consecutive naturals, for example, 13685 + ... + 13785.

It is an arithmetic number, because the mean of its divisors is an integer number (109242).

2^1387235 is an apocalyptic number.

1387235 is a deficient number, since it is larger than the sum of its proper divisors (360637).

1387235 is a wasteful number, since it uses less digits than its factorization.

1387235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214.

The product of its digits is 5040, while the sum is 29.

The square root of 1387235 is about 1177.8094073321. The cubic root of 1387235 is about 111.5278540478.

The spelling of 1387235 in words is "one million, three hundred eighty-seven thousand, two hundred thirty-five".