164502453 has 4 divisors (see below), whose sum is σ = 219336608. Its totient is φ = 109668300.

The previous prime is 164502451. The next prime is 164502479. The reversal of 164502453 is 354205461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354205461 = 3 ⋅118068487.

It is not a de Polignac number, because 164502453 - 2¹ = 164502451 is a prime.

It is a super-2 number, since 2×164502453² = 54122114086034418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164502453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164502451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27417073 + ... + 27417078.

It is an arithmetic number, because the mean of its divisors is an integer number (54834152).

Almost surely, 2^164502453 is an apocalyptic number.

It is an amenable number.

164502453 is a deficient number, since it is larger than the sum of its proper divisors (54834155).

164502453 is an equidigital number, since it uses as much as digits as its factorization.

164502453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54834154.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 164502453 is about 12825.8509659204. The cubic root of 164502453 is about 547.9287973360.

The spelling of 164502453 in words is "one hundred sixty-four million, five hundred two thousand, four hundred fifty-three".