154545434 has 4 divisors (see below), whose sum is σ = 231818154. Its totient is φ = 77272716.

The previous prime is 154545431. The next prime is 154545491. The reversal of 154545434 is 434545451.

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

It can be written as a sum of positive squares in only one way, i.e., 152152225 + 2393209 = 12335^2 + 1547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154545394 and 154545403.

It is not an unprimeable number, because it can be changed into a prime (154545431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38636357 + ... + 38636360.

Almost surely, 2^154545434 is an apocalyptic number.

154545434 is a deficient number, since it is larger than the sum of its proper divisors (77272720).

154545434 is an equidigital number, since it uses as much as digits as its factorization.

154545434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77272719.

The product of its digits is 96000, while the sum is 35.

The square root of 154545434 is about 12431.6303838234. The cubic root of 154545434 is about 536.6429061575.

The spelling of 154545434 in words is "one hundred fifty-four million, five hundred forty-five thousand, four hundred thirty-four".