154242053621402 has 8 divisors (see below), whose sum is σ = 235284488575200. Its totient is φ = 75813890763004.

The previous prime is 154242053621377. The next prime is 154242053621441. The reversal of 154242053621402 is 204126350242451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×154242053621402² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 154242053621402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653568023702 + ... + 653568023937.

It is an arithmetic number, because the mean of its divisors is an integer number (29410561071900).

Almost surely, 2^{154242053621402} is an apocalyptic number.

154242053621402 is a deficient number, since it is larger than the sum of its proper divisors (81042434953798).

154242053621402 is a wasteful number, since it uses less digits than its factorization.

154242053621402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307136047700.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 154242053621402 in words is "one hundred fifty-four trillion, two hundred forty-two billion, fifty-three million, six hundred twenty-one thousand, four hundred two".