164215142 has 16 divisors (see below), whose sum is σ = 303166752. Its totient is φ = 64964160.

The previous prime is 164215141. The next prime is 164215159. The reversal of 164215142 is 241512461.

It is a super-2 number, since 2×164215142² = 53933225724160328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164215141) 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, 450959 + ... + 451322.

It is an arithmetic number, because the mean of its divisors is an integer number (18947922).

Almost surely, 2^164215142 is an apocalyptic number.

164215142 is a deficient number, since it is larger than the sum of its proper divisors (138951610).

164215142 is a wasteful number, since it uses less digits than its factorization.

164215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902303.

The product of its digits is 1920, while the sum is 26.

The square root of 164215142 is about 12814.6456057122. The cubic root of 164215142 is about 547.6096172724.

The spelling of 164215142 in words is "one hundred sixty-four million, two hundred fifteen thousand, one hundred forty-two".