1238959 has 4 divisors (see below), whose sum is σ = 1267816. Its totient is φ = 1210104.

The previous prime is 1238947. The next prime is 1238989. The reversal of 1238959 is 9598321.

1238959 = T₆₉ + T₇₀ + ... + T₁₉₇.

It is a semiprime because it is the product of two primes.

It is a 5-Lehmer number, since φ(1238959) divides (1238959-1)⁵.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1238959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14364 + ... + 14449.

It is an arithmetic number, because the mean of its divisors is an integer number (316954).

2^1238959 is an apocalyptic number.

1238959 is a deficient number, since it is larger than the sum of its proper divisors (28857).

1238959 is an equidigital number, since it uses as much as digits as its factorization.

1238959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28856.

The product of its digits is 19440, while the sum is 37.

The square root of 1238959 is about 1113.0853516240. The cubic root of 1238959 is about 107.4036345719.

It can be divided in two parts, 123895 and 9, that added together give a square (123904 = 352²).

The spelling of 1238959 in words is "one million, two hundred thirty-eight thousand, nine hundred fifty-nine".