154450421012 has 24 divisors (see below), whose sum is σ = 272273729280. Its totient is φ = 76658094720.

The previous prime is 154450421003. The next prime is 154450421029. The reversal of 154450421012 is 210124054451.

It is a happy number.

It is a super-2 number, since 2×154450421012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4590812 + ... + 4624332.

It is an arithmetic number, because the mean of its divisors is an integer number (11344738720).

Almost surely, 2^154450421012 is an apocalyptic number.

It is an amenable number.

154450421012 is a deficient number, since it is larger than the sum of its proper divisors (117823308268).

154450421012 is a wasteful number, since it uses less digits than its factorization.

154450421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41951 (or 41949 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 154450421012 its reverse (210124054451), we get a palindrome (364574475463).

The spelling of 154450421012 in words is "one hundred fifty-four billion, four hundred fifty million, four hundred twenty-one thousand, twelve".