168353137 has 4 divisors (see below), whose sum is σ = 171206640. Its totient is φ = 165499636.

The previous prime is 168353089. The next prime is 168353153. The reversal of 168353137 is 731353861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168353137 - 2¹¹ = 168351089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168353096 and 168353105.

It is not an unprimeable number, because it can be changed into a prime (168353197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426663 + ... + 1426780.

It is an arithmetic number, because the mean of its divisors is an integer number (42801660).

Almost surely, 2^168353137 is an apocalyptic number.

It is an amenable number.

168353137 is a deficient number, since it is larger than the sum of its proper divisors (2853503).

168353137 is an equidigital number, since it uses as much as digits as its factorization.

168353137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853502.

The product of its digits is 45360, while the sum is 37.

The square root of 168353137 is about 12975.0968011803. The cubic root of 168353137 is about 552.1711830368.

It can be divided in two parts, 168353 and 137, that added together give a triangular number (168490 = T₅₈₀).

The spelling of 168353137 in words is "one hundred sixty-eight million, three hundred fifty-three thousand, one hundred thirty-seven".