164961031 has 4 divisors (see below), whose sum is σ = 165122064. Its totient is φ = 164800000.

The previous prime is 164961011. The next prime is 164961073. The reversal of 164961031 is 130169461.

164961031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130169461 = 47 ⋅2769563.

It is a cyclic number.

It is not a de Polignac number, because 164961031 - 2¹⁹ = 164436743 is a prime.

It is a super-2 number, since 2×164961031² = 54424283497165922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164960984 and 164961002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164961011) 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, 78970 + ... + 81031.

It is an arithmetic number, because the mean of its divisors is an integer number (41280516).

Almost surely, 2^164961031 is an apocalyptic number.

164961031 is a deficient number, since it is larger than the sum of its proper divisors (161033).

164961031 is a wasteful number, since it uses less digits than its factorization.

164961031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161032.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 164961031 is about 12843.7156228250. The cubic root of 164961031 is about 548.4374725654.

It can be divided in two parts, 16496 and 1031, that multiplied together give a square (17007376 = 4124²).

The spelling of 164961031 in words is "one hundred sixty-four million, nine hundred sixty-one thousand, thirty-one".