154001402447 has 4 divisors (see below), whose sum is σ = 157757534256. Its totient is φ = 150245270640.

The previous prime is 154001402417. The next prime is 154001402497. The reversal of 154001402447 is 744204100451.

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 154001402447 - 2³⁴ = 136821533263 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 (154001402407) 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, 1878065843 + ... + 1878065924.

It is an arithmetic number, because the mean of its divisors is an integer number (39439383564).

Almost surely, 2^154001402447 is an apocalyptic number.

154001402447 is a deficient number, since it is larger than the sum of its proper divisors (3756131809).

154001402447 is an equidigital number, since it uses as much as digits as its factorization.

154001402447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756131808.

The product of its (nonzero) digits is 17920, while the sum is 32.

Adding to 154001402447 its reverse (744204100451), we get a palindrome (898205502898).

The spelling of 154001402447 in words is "one hundred fifty-four billion, one million, four hundred two thousand, four hundred forty-seven".