164590951 has 14 divisors (see below), whose sum is σ = 192159800. Its totient is φ = 140977116.

The previous prime is 164590949. The next prime is 164590969. The reversal of 164590951 is 159095461.

It is not a de Polignac number, because 164590951 - 2¹ = 164590949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164590351) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 116950 + ... + 118348.

It is an arithmetic number, because the mean of its divisors is an integer number (13725700).

Almost surely, 2^164590951 is an apocalyptic number.

164590951 is a deficient number, since it is larger than the sum of its proper divisors (27568849).

164590951 is an frugal number, since it uses more digits than its factorization.

164590951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 164590951 is about 12829.3004875558. The cubic root of 164590951 is about 548.0270368229.

The spelling of 164590951 in words is "one hundred sixty-four million, five hundred ninety thousand, nine hundred fifty-one".