154320983 has 4 divisors (see below), whose sum is σ = 162443160. Its totient is φ = 146198808.

The previous prime is 154320973. The next prime is 154321067. The reversal of 154320983 is 389023451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389023451 = 43 ⋅9047057.

It is a cyclic number.

It is not a de Polignac number, because 154320983 - 2⁴ = 154320967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154320923) 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, 4061060 + ... + 4061097.

It is an arithmetic number, because the mean of its divisors is an integer number (40610790).

Almost surely, 2^154320983 is an apocalyptic number.

154320983 is a deficient number, since it is larger than the sum of its proper divisors (8122177).

154320983 is an equidigital number, since it uses as much as digits as its factorization.

154320983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122176.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 154320983 is about 12422.5996876660. The cubic root of 154320983 is about 536.3829860551.

The spelling of 154320983 in words is "one hundred fifty-four million, three hundred twenty thousand, nine hundred eighty-three".