1237139 has 2 divisors, whose sum is σ = 1237140. Its totient is φ = 1237138.

The previous prime is 1237129. The next prime is 1237151. The reversal of 1237139 is 9317321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1237139 - 2⁸ = 1236883 is a prime.

It is equal to p₉₅₅₃₄ and since 1237139 and 95534 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (1237129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618569 + 618570.

It is an arithmetic number, because the mean of its divisors is an integer number (618570).

2^1237139 is an apocalyptic number.

1237139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1237139 is an equidigital number, since it uses as much as digits as its factorization.

1237139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 26.

The square root of 1237139 is about 1112.2675037957. The cubic root of 1237139 is about 107.3510177086.

The spelling of 1237139 in words is "one million, two hundred thirty-seven thousand, one hundred thirty-nine".