146053997 has 4 divisors (see below), whose sum is σ = 146523936. Its totient is φ = 145584060.

The previous prime is 146053981. The next prime is 146054003. The reversal of 146053997 is 799350641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 146053997 - 2⁴ = 146053981 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 (146053907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234503 + ... + 235124.

It is an arithmetic number, because the mean of its divisors is an integer number (36630984).

Almost surely, 2^146053997 is an apocalyptic number.

It is an amenable number.

146053997 is a deficient number, since it is larger than the sum of its proper divisors (469939).

146053997 is an equidigital number, since it uses as much as digits as its factorization.

146053997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469938.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 146053997 is about 12085.2801787960. The cubic root of 146053997 is about 526.6286500270.

The spelling of 146053997 in words is "one hundred forty-six million, fifty-three thousand, nine hundred ninety-seven".