146864131 has 4 divisors (see below), whose sum is σ = 153249552. Its totient is φ = 140478712.

The previous prime is 146864119. The next prime is 146864209. The reversal of 146864131 is 131468641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131468641 = 71 ⋅1851671.

It is a cyclic number.

It is not a de Polignac number, because 146864131 - 2⁵ = 146864099 is a prime.

It is a super-2 number, since 2×146864131² = 43138145948770322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (146861131) 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, 3192676 + ... + 3192721.

It is an arithmetic number, because the mean of its divisors is an integer number (38312388).

Almost surely, 2^146864131 is an apocalyptic number.

146864131 is a deficient number, since it is larger than the sum of its proper divisors (6385421).

146864131 is an equidigital number, since it uses as much as digits as its factorization.

146864131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385420.

The product of its digits is 13824, while the sum is 34.

The square root of 146864131 is about 12118.7512145435. The cubic root of 146864131 is about 527.6005585340.

The spelling of 146864131 in words is "one hundred forty-six million, eight hundred sixty-four thousand, one hundred thirty-one".