154142006625442 has 48 divisors (see below), whose sum is σ = 261101485464120. Its totient is φ = 68147530260480.

The previous prime is 154142006625293. The next prime is 154142006625631. The reversal of 154142006625442 is 244526600241451.

It can be written as a sum of positive squares in 4 ways, for example, as 130778230660561 + 23363775964881 = 11435831^2 + 4833609^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154142006625392 and 154142006625401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23168034 + ... + 29069602.

Almost surely, 2^{154142006625442} is an apocalyptic number.

154142006625442 is a deficient number, since it is larger than the sum of its proper divisors (106959478838678).

154142006625442 is a wasteful number, since it uses less digits than its factorization.

154142006625442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904547 (or 5904536 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

Adding to 154142006625442 its reverse (244526600241451), we get a palindrome (398668606866893).

The spelling of 154142006625442 in words is "one hundred fifty-four trillion, one hundred forty-two billion, six million, six hundred twenty-five thousand, four hundred forty-two".