164226757 has 8 divisors (see below), whose sum is σ = 169803000. Its totient is φ = 158710464.

The previous prime is 164226737. The next prime is 164226767. The reversal of 164226757 is 757622461.

It can be written as a sum of positive squares in 4 ways, for example, as 1766241 + 162460516 = 1329^2 + 12746^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-164226757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164226737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9382 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (21225375).

Almost surely, 2^164226757 is an apocalyptic number.

It is an amenable number.

164226757 is a deficient number, since it is larger than the sum of its proper divisors (5576243).

164226757 is a wasteful number, since it uses less digits than its factorization.

164226757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29975.

The product of its digits is 141120, while the sum is 40.

The square root of 164226757 is about 12815.0987900991. The cubic root of 164226757 is about 547.6225278474.

The spelling of 164226757 in words is "one hundred sixty-four million, two hundred twenty-six thousand, seven hundred fifty-seven".