146497021 has 8 divisors (see below), whose sum is σ = 159984864. Its totient is φ = 133037520.

The previous prime is 146497019. The next prime is 146497031. The reversal of 146497021 is 120794641.

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

It is not a de Polignac number, because 146497021 - 2¹ = 146497019 is a prime.

It is a super-2 number, since 2×146497021² = 42922754323748882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146497031) 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 7 ways as a sum of consecutive naturals, for example, 4570 + ... + 17716.

It is an arithmetic number, because the mean of its divisors is an integer number (19998108).

Almost surely, 2^146497021 is an apocalyptic number.

146497021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

146497021 is a deficient number, since it is larger than the sum of its proper divisors (13487843).

146497021 is a wasteful number, since it uses less digits than its factorization.

146497021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14171.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 146497021 is about 12103.5953749289. The cubic root of 146497021 is about 527.1605848697.

The spelling of 146497021 in words is "one hundred forty-six million, four hundred ninety-seven thousand, twenty-one".