146964187 has 4 divisors (see below), whose sum is σ = 148615560. Its totient is φ = 145312816.

The previous prime is 146964163. The next prime is 146964193. The reversal of 146964187 is 781469641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781469641 = 29 ⋅26947229.

It is a cyclic number.

It is not a de Polignac number, because 146964187 - 2¹⁵ = 146931419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146964127) 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, 825553 + ... + 825730.

It is an arithmetic number, because the mean of its divisors is an integer number (37153890).

Almost surely, 2^146964187 is an apocalyptic number.

146964187 is a deficient number, since it is larger than the sum of its proper divisors (1651373).

146964187 is an equidigital number, since it uses as much as digits as its factorization.

146964187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651372.

The product of its digits is 290304, while the sum is 46.

The square root of 146964187 is about 12122.8786597903. The cubic root of 146964187 is about 527.7203463892.

It can be divided in two parts, 1469 and 64187, that added together give a palindrome (65656).

The spelling of 146964187 in words is "one hundred forty-six million, nine hundred sixty-four thousand, one hundred eighty-seven".