154212404 has 24 divisors (see below), whose sum is σ = 276461640. Its totient is φ = 75239424.

The previous prime is 154212391. The next prime is 154212407. The reversal of 154212404 is 404212451.

It can be written as a sum of positive squares in 4 ways, for example, as 42276004 + 111936400 = 6502^2 + 10580^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 154212404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154212407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39032 + ... + 42800.

It is an arithmetic number, because the mean of its divisors is an integer number (11519235).

Almost surely, 2^154212404 is an apocalyptic number.

It is an amenable number.

154212404 is a deficient number, since it is larger than the sum of its proper divisors (122249236).

154212404 is a wasteful number, since it uses less digits than its factorization.

154212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019 (or 4017 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 154212404 is about 12418.2286981679. The cubic root of 154212404 is about 536.2571582913.

Adding to 154212404 its reverse (404212451), we get a palindrome (558424855).

The spelling of 154212404 in words is "one hundred fifty-four million, two hundred twelve thousand, four hundred four".