154134431452 has 12 divisors (see below), whose sum is σ = 269753656536. Its totient is φ = 77061958160.

The previous prime is 154134431417. The next prime is 154134431459. The reversal of 154134431452 is 254134431451.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1248058 + ... + 1365985.

It is an arithmetic number, because the mean of its divisors is an integer number (22479471378).

Almost surely, 2^154134431452 is an apocalyptic number.

It is an amenable number.

154134431452 is a deficient number, since it is larger than the sum of its proper divisors (115619225084).

154134431452 is a wasteful number, since it uses less digits than its factorization.

154134431452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628788 (or 2628786 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

Subtracting 154134431452 from its reverse (254134431451), we obtain a palindrome (99999999999).

The spelling of 154134431452 in words is "one hundred fifty-four billion, one hundred thirty-four million, four hundred thirty-one thousand, four hundred fifty-two".