164038451 has 2 divisors, whose sum is σ = 164038452. Its totient is φ = 164038450.

The previous prime is 164038447. The next prime is 164038477. The reversal of 164038451 is 154830461.

164038451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164038451 - 2² = 164038447 is a prime.

It is a super-2 number, since 2×164038451² = 53817226812958802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164038411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82019225 + 82019226.

It is an arithmetic number, because the mean of its divisors is an integer number (82019226).

Almost surely, 2^164038451 is an apocalyptic number.

164038451 is a deficient number, since it is larger than the sum of its proper divisors (1).

164038451 is an equidigital number, since it uses as much as digits as its factorization.

164038451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 164038451 is about 12807.7496462103. The cubic root of 164038451 is about 547.4131424663.

The spelling of 164038451 in words is "one hundred sixty-four million, thirty-eight thousand, four hundred fifty-one".