154543402 has 12 divisors (see below), whose sum is σ = 251019270. Its totient is φ = 71327568.

The previous prime is 154543393. The next prime is 154543429. The reversal of 154543402 is 204345451.

154543402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 66765241 + 87778161 = 8171^2 + 9369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228277 + ... + 228952.

Almost surely, 2^154543402 is an apocalyptic number.

154543402 is a deficient number, since it is larger than the sum of its proper divisors (96475868).

154543402 is a wasteful number, since it uses less digits than its factorization.

154543402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457257 (or 457244 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 154543402 is about 12431.5486565432. The cubic root of 154543402 is about 536.6405541779.

Adding to 154543402 its reverse (204345451), we get a palindrome (358888853).

The spelling of 154543402 in words is "one hundred fifty-four million, five hundred forty-three thousand, four hundred two".