1306137 has 24 divisors (see below), whose sum is σ = 2095168. Its totient is φ = 708480.

The previous prime is 1306133. The next prime is 1306139. The reversal of 1306137 is 7316031.

It is not a de Polignac number, because 1306137 - 2² = 1306133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31837 + ... + 31877.

2^1306137 is an apocalyptic number.

It is an amenable number.

1306137 is a deficient number, since it is larger than the sum of its proper divisors (789031).

1306137 is an equidigital number, since it uses as much as digits as its factorization.

1306137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 1306137 is about 1142.8635089108. The cubic root of 1306137 is about 109.3107592283.

The spelling of 1306137 in words is "one million, three hundred six thousand, one hundred thirty-seven".