137832769 has 4 divisors (see below), whose sum is σ = 138065796. Its totient is φ = 137599744.

The previous prime is 137832763. The next prime is 137832803. The reversal of 137832769 is 967238731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967238731 = 127 ⋅7616053.

It can be written as a sum of positive squares in 2 ways, for example, as 68277169 + 69555600 = 8263^2 + 8340^2 .

It is a cyclic number.

It is not a de Polignac number, because 137832769 - 2⁹ = 137832257 is a prime.

It is a super-2 number, since 2×137832769² = 37995744420414722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137832763) 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 3 ways as a sum of consecutive naturals, for example, 115624 + ... + 116809.

It is an arithmetic number, because the mean of its divisors is an integer number (34516449).

Almost surely, 2^137832769 is an apocalyptic number.

It is an amenable number.

137832769 is a deficient number, since it is larger than the sum of its proper divisors (233027).

137832769 is an equidigital number, since it uses as much as digits as its factorization.

137832769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233026.

The product of its digits is 381024, while the sum is 46.

The square root of 137832769 is about 11740.2201427401. The cubic root of 137832769 is about 516.5560990363.

It can be divided in two parts, 137832 and 769, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 137832769 in words is "one hundred thirty-seven million, eight hundred thirty-two thousand, seven hundred sixty-nine".