146243397 has 8 divisors (see below), whose sum is σ = 195053344. Its totient is φ = 97464528.

The previous prime is 146243389. The next prime is 146243411. The reversal of 146243397 is 793342641.

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

It is not a de Polignac number, because 146243397 - 2³ = 146243389 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 (146243327) 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, 7503 + ... + 18675.

It is an arithmetic number, because the mean of its divisors is an integer number (24381668).

Almost surely, 2^146243397 is an apocalyptic number.

It is an amenable number.

146243397 is a deficient number, since it is larger than the sum of its proper divisors (48809947).

146243397 is a wasteful number, since it uses less digits than its factorization.

146243397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15539.

The product of its digits is 108864, while the sum is 39.

The square root of 146243397 is about 12093.1136189155. The cubic root of 146243397 is about 526.8561923156.

The spelling of 146243397 in words is "one hundred forty-six million, two hundred forty-three thousand, three hundred ninety-seven".