164064631 has 2 divisors, whose sum is σ = 164064632. Its totient is φ = 164064630.

The previous prime is 164064581. The next prime is 164064643. The reversal of 164064631 is 136460461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164064631 - 2⁷ = 164064503 is a prime.

It is a super-2 number, since 2×164064631² = 53834406290332322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 164064593 and 164064602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164064661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82032315 + 82032316.

It is an arithmetic number, because the mean of its divisors is an integer number (82032316).

Almost surely, 2^164064631 is an apocalyptic number.

164064631 is a deficient number, since it is larger than the sum of its proper divisors (1).

164064631 is an equidigital number, since it uses as much as digits as its factorization.

164064631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164064631 is about 12808.7716429016. The cubic root of 164064631 is about 547.4422626993.

The spelling of 164064631 in words is "one hundred sixty-four million, sixty-four thousand, six hundred thirty-one".