165151741 has 2 divisors, whose sum is σ = 165151742. Its totient is φ = 165151740.

The previous prime is 165151733. The next prime is 165151747. The reversal of 165151741 is 147151561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165122500 + 29241 = 12850^2 + 171^2 .

It is a cyclic number.

It is not a de Polignac number, because 165151741 - 2³ = 165151733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165151747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82575870 + 82575871.

It is an arithmetic number, because the mean of its divisors is an integer number (82575871).

Almost surely, 2^165151741 is an apocalyptic number.

It is an amenable number.

165151741 is a deficient number, since it is larger than the sum of its proper divisors (1).

165151741 is an equidigital number, since it uses as much as digits as its factorization.

165151741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 31.

The square root of 165151741 is about 12851.1377317341. The cubic root of 165151741 is about 548.6487390879.

The spelling of 165151741 in words is "one hundred sixty-five million, one hundred fifty-one thousand, seven hundred forty-one".