154355620403 has 4 divisors (see below), whose sum is σ = 154427650368. Its totient is φ = 154283590440.

The previous prime is 154355620379. The next prime is 154355620417. The reversal of 154355620403 is 304026553451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154355620403 - 2¹⁶ = 154355554867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154355620483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36011768 + ... + 36016053.

It is an arithmetic number, because the mean of its divisors is an integer number (38606912592).

Almost surely, 2^154355620403 is an apocalyptic number.

154355620403 is a deficient number, since it is larger than the sum of its proper divisors (72029965).

154355620403 is an equidigital number, since it uses as much as digits as its factorization.

154355620403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72029964.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 154355620403 in words is "one hundred fifty-four billion, three hundred fifty-five million, six hundred twenty thousand, four hundred three".