146481983 has 4 divisors (see below), whose sum is σ = 149245848. Its totient is φ = 143718120.

The previous prime is 146481967. The next prime is 146481989. The reversal of 146481983 is 389184641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146481983 - 2⁴ = 146481967 is a prime.

It is a super-2 number, since 2×146481983² = 42913942687224578, 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 (146481989) 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, 1381853 + ... + 1381958.

It is an arithmetic number, because the mean of its divisors is an integer number (37311462).

Almost surely, 2^146481983 is an apocalyptic number.

146481983 is a deficient number, since it is larger than the sum of its proper divisors (2763865).

146481983 is an equidigital number, since it uses as much as digits as its factorization.

146481983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763864.

The product of its digits is 165888, while the sum is 44.

The square root of 146481983 is about 12102.9741386157. The cubic root of 146481983 is about 527.1425464775.

The spelling of 146481983 in words is "one hundred forty-six million, four hundred eighty-one thousand, nine hundred eighty-three".