164171537 has 2 divisors, whose sum is σ = 164171538. Its totient is φ = 164171536.

The previous prime is 164171531. The next prime is 164171543. The reversal of 164171537 is 735171461.

It is a balanced prime because it is at equal distance from previous prime (164171531) and next prime (164171543).

It can be written as a sum of positive squares in only one way, i.e., 88811776 + 75359761 = 9424^2 + 8681^2 .

It is a cyclic number.

It is not a de Polignac number, because 164171537 - 2⁶ = 164171473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164171497 and 164171506.

It is not a weakly prime, because it can be changed into another prime (164171531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82085768 + 82085769.

It is an arithmetic number, because the mean of its divisors is an integer number (82085769).

Almost surely, 2^164171537 is an apocalyptic number.

It is an amenable number.

164171537 is a deficient number, since it is larger than the sum of its proper divisors (1).

164171537 is an equidigital number, since it uses as much as digits as its factorization.

164171537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 164171537 is about 12812.9441191320. The cubic root of 164171537 is about 547.5611429946.

The spelling of 164171537 in words is "one hundred sixty-four million, one hundred seventy-one thousand, five hundred thirty-seven".