146244387 has 32 divisors (see below), whose sum is σ = 223257600. Its totient is φ = 84561408.

The previous prime is 146244383. The next prime is 146244403. The reversal of 146244387 is 783442641.

It is not a de Polignac number, because 146244387 - 2² = 146244383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146244383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33814 + ... + 37892.

It is an arithmetic number, because the mean of its divisors is an integer number (6976800).

Almost surely, 2^146244387 is an apocalyptic number.

146244387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

146244387 is a deficient number, since it is larger than the sum of its proper divisors (77013213).

146244387 is a wasteful number, since it uses less digits than its factorization.

146244387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155.

The product of its digits is 129024, while the sum is 39.

The square root of 146244387 is about 12093.1545512327. The cubic root of 146244387 is about 526.8573811703.

The spelling of 146244387 in words is "one hundred forty-six million, two hundred forty-four thousand, three hundred eighty-seven".