146537397 has 16 divisors (see below), whose sum is σ = 220152960. Its totient is φ = 96314400.

The previous prime is 146537381. The next prime is 146537407. The reversal of 146537397 is 793735641.

It is not a de Polignac number, because 146537397 - 2⁴ = 146537381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146537317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36304 + ... + 40137.

It is an arithmetic number, because the mean of its divisors is an integer number (13759560).

Almost surely, 2^146537397 is an apocalyptic number.

It is an amenable number.

146537397 is a deficient number, since it is larger than the sum of its proper divisors (73615563).

146537397 is an equidigital number, since it uses as much as digits as its factorization.

146537397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76521 (or 76515 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 146537397 is about 12105.2631941648. The cubic root of 146537397 is about 527.2090106113.

The spelling of 146537397 in words is "one hundred forty-six million, five hundred thirty-seven thousand, three hundred ninety-seven".