165953107 has 2 divisors, whose sum is σ = 165953108. Its totient is φ = 165953106.

The previous prime is 165953069. The next prime is 165953111. The reversal of 165953107 is 701359561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165953107 is a prime.

It is a super-3 number, since 3×165953107³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (165953147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82976553 + 82976554.

It is an arithmetic number, because the mean of its divisors is an integer number (82976554).

Almost surely, 2^165953107 is an apocalyptic number.

165953107 is a deficient number, since it is larger than the sum of its proper divisors (1).

165953107 is an equidigital number, since it uses as much as digits as its factorization.

165953107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 165953107 is about 12882.2787968589. The cubic root of 165953107 is about 549.5347106174.

The spelling of 165953107 in words is "one hundred sixty-five million, nine hundred fifty-three thousand, one hundred seven".