154134431450 has 24 divisors (see below), whose sum is σ = 286716440640. Its totient is φ = 61648095600.

The previous prime is 154134431417. The next prime is 154134431459. The reversal of 154134431450 is 54134431451.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 154134431450.

It is not an unprimeable number, because it can be changed into a prime (154134431459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429281 + ... + 701819.

It is an arithmetic number, because the mean of its divisors is an integer number (11946518360).

Almost surely, 2^154134431450 is an apocalyptic number.

154134431450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154134431450 is a deficient number, since it is larger than the sum of its proper divisors (132582009190).

154134431450 is a wasteful number, since it uses less digits than its factorization.

154134431450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283862 (or 283857 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Subtracting from 154134431450 its reverse (54134431451), we obtain a palindrome (99999999999).

The spelling of 154134431450 in words is "one hundred fifty-four billion, one hundred thirty-four million, four hundred thirty-one thousand, four hundred fifty".