146273457 has 32 divisors (see below), whose sum is σ = 237150720. Its totient is φ = 79038720.

The previous prime is 146273443. The next prime is 146273467. The reversal of 146273457 is 754372641.

It is not a de Polignac number, because 146273457 - 2⁴ = 146273441 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (146273437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3798 + ... + 17520.

It is an arithmetic number, because the mean of its divisors is an integer number (7410960).

Almost surely, 2^146273457 is an apocalyptic number.

146273457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

146273457 is a deficient number, since it is larger than the sum of its proper divisors (90877263).

146273457 is a wasteful number, since it uses less digits than its factorization.

146273457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13773.

The product of its digits is 141120, while the sum is 39.

The square root of 146273457 is about 12094.3564111531. The cubic root of 146273457 is about 526.8922878761.

The spelling of 146273457 in words is "one hundred forty-six million, two hundred seventy-three thousand, four hundred fifty-seven".