154406013442 has 32 divisors (see below), whose sum is σ = 236306594160. Its totient is φ = 75647416320.

The previous prime is 154406013409. The next prime is 154406013451. The reversal of 154406013442 is 244310604451.

It can be written as a sum of positive squares in 8 ways, for example, as 1431941281 + 152974072161 = 37841^2 + 391119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154406013398 and 154406013407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42734428 + ... + 42738040.

Almost surely, 2^154406013442 is an apocalyptic number.

154406013442 is a deficient number, since it is larger than the sum of its proper divisors (81900580718).

154406013442 is a wasteful number, since it uses less digits than its factorization.

154406013442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 154406013442 its reverse (244310604451), we get a palindrome (398716617893).

The spelling of 154406013442 in words is "one hundred fifty-four billion, four hundred six million, thirteen thousand, four hundred forty-two".