154981433 has 2 divisors, whose sum is σ = 154981434. Its totient is φ = 154981432.

The previous prime is 154981373. The next prime is 154981447. The reversal of 154981433 is 334189451.

154981433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132066064 + 22915369 = 11492^2 + 4787^2 .

It is a cyclic number.

It is not a de Polignac number, because 154981433 - 2¹⁰ = 154980409 is a prime.

It is not a weakly prime, because it can be changed into another prime (154981483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77490716 + 77490717.

It is an arithmetic number, because the mean of its divisors is an integer number (77490717).

Almost surely, 2^154981433 is an apocalyptic number.

It is an amenable number.

154981433 is a deficient number, since it is larger than the sum of its proper divisors (1).

154981433 is an equidigital number, since it uses as much as digits as its factorization.

154981433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 154981433 is about 12449.1539069930. The cubic root of 154981433 is about 537.1470860182.

The spelling of 154981433 in words is "one hundred fifty-four million, nine hundred eighty-one thousand, four hundred thirty-three".