154103470531021 has 4 divisors (see below), whose sum is σ = 168112876942944. Its totient is φ = 140094064119100.

The previous prime is 154103470531009. The next prime is 154103470531067. The reversal of 154103470531021 is 120135074301451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154103470531021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154103470531091) by changing a digit.

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, 7004703205945 + ... + 7004703205966.

It is an arithmetic number, because the mean of its divisors is an integer number (42028219235736).

Almost surely, 2^{154103470531021} is an apocalyptic number.

154103470531021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154103470531021 is a deficient number, since it is larger than the sum of its proper divisors (14009406411923).

154103470531021 is a wasteful number, since it uses less digits than its factorization.

154103470531021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14009406411922.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 154103470531021 in words is "one hundred fifty-four trillion, one hundred three billion, four hundred seventy million, five hundred thirty-one thousand, twenty-one".