168007953 has 4 divisors (see below), whose sum is σ = 224010608. Its totient is φ = 112005300.

The previous prime is 168007949. The next prime is 168007963. The reversal of 168007953 is 359700861.

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 not a de Polignac number, because 168007953 - 2² = 168007949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168007943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28001323 + ... + 28001328.

It is an arithmetic number, because the mean of its divisors is an integer number (56002652).

Almost surely, 2^168007953 is an apocalyptic number.

It is an amenable number.

168007953 is a deficient number, since it is larger than the sum of its proper divisors (56002655).

168007953 is an equidigital number, since it uses as much as digits as its factorization.

168007953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56002654.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 168007953 is about 12961.7881868205. The cubic root of 168007953 is about 551.7935421722.

It can be divided in two parts, 16800 and 7953, that added together give a triangular number (24753 = T₂₂₂).

The spelling of 168007953 in words is "one hundred sixty-eight million, seven thousand, nine hundred fifty-three".