154031923 has 4 divisors (see below), whose sum is σ = 154645848. Its totient is φ = 153418000.

The previous prime is 154031921. The next prime is 154031953. The reversal of 154031923 is 329130451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329130451 = 13 ⋅25317727.

It is a cyclic number.

It is not a de Polignac number, because 154031923 - 2¹ = 154031921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154031891 and 154031900.

It is not an unprimeable number, because it can be changed into a prime (154031921) 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, 306586 + ... + 307087.

It is an arithmetic number, because the mean of its divisors is an integer number (38661462).

Almost surely, 2^154031923 is an apocalyptic number.

154031923 is a deficient number, since it is larger than the sum of its proper divisors (613925).

154031923 is an equidigital number, since it uses as much as digits as its factorization.

154031923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613924.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 154031923 is about 12410.9597936662. The cubic root of 154031923 is about 536.0478754946.

The spelling of 154031923 in words is "one hundred fifty-four million, thirty-one thousand, nine hundred twenty-three".