672137 has 2 divisors, whose sum is σ = 672138. Its totient is φ = 672136.

The previous prime is 672131. The next prime is 672143. The reversal of 672137 is 731276.

It is a balanced prime because it is at equal distance from previous prime (672131) and next prime (672143).

It can be written as a sum of positive squares in only one way, i.e., 379456 + 292681 = 616^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 672137 - 2⁶ = 672073 is a prime.

It is a plaindrome in base 9.

It is not a weakly prime, because it can be changed into another prime (672131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336068 + 336069.

It is an arithmetic number, because the mean of its divisors is an integer number (336069).

2⁶⁷²¹³⁷ is an apocalyptic number.

It is an amenable number.

672137 is a deficient number, since it is larger than the sum of its proper divisors (1).

672137 is an equidigital number, since it uses as much as digits as its factorization.

672137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 26.

The square root of 672137 is about 819.8396184621. The cubic root of 672137 is about 87.5963347159.

The spelling of 672137 in words is "six hundred seventy-two thousand, one hundred thirty-seven".