162166531 has 2 divisors, whose sum is σ = 162166532. Its totient is φ = 162166530.

The previous prime is 162166483. The next prime is 162166541. The reversal of 162166531 is 135661261.

162166531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162166531 - 2²⁷ = 27948803 is a prime.

It is a super-2 number, since 2×162166531² = 52595967553147922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 162166493 and 162166502.

It is not a weakly prime, because it can be changed into another prime (162166541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81083265 + 81083266.

It is an arithmetic number, because the mean of its divisors is an integer number (81083266).

Almost surely, 2^162166531 is an apocalyptic number.

162166531 is a deficient number, since it is larger than the sum of its proper divisors (1).

162166531 is an equidigital number, since it uses as much as digits as its factorization.

162166531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 162166531 is about 12734.4623365103. The cubic root of 162166531 is about 545.3229082684.

The spelling of 162166531 in words is "one hundred sixty-two million, one hundred sixty-six thousand, five hundred thirty-one".