146172887 has 8 divisors (see below), whose sum is σ = 170207136. Its totient is φ = 122926752.

The previous prime is 146172881. The next prime is 146172893. The reversal of 146172887 is 788271641.

It is an interprime number because it is at equal distance from previous prime (146172881) and next prime (146172893).

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

It is a cyclic number.

It is not a de Polignac number, because 146172887 - 2¹⁰ = 146171863 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 (146172881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196628 + ... + 197369.

It is an arithmetic number, because the mean of its divisors is an integer number (21275892).

Almost surely, 2^146172887 is an apocalyptic number.

146172887 is a deficient number, since it is larger than the sum of its proper divisors (24034249).

146172887 is an equidigital number, since it uses as much as digits as its factorization.

146172887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394057.

The product of its digits is 150528, while the sum is 44.

The square root of 146172887 is about 12090.1979719110. The cubic root of 146172887 is about 526.7715056385.

The spelling of 146172887 in words is "one hundred forty-six million, one hundred seventy-two thousand, eight hundred eighty-seven".