154591139450 has 96 divisors (see below), whose sum is σ = 324514086912. Its totient is φ = 54281304000.

The previous prime is 154591139431. The next prime is 154591139471. The reversal of 154591139450 is 54931195451.

It is a super-3 number, since 3×154591139450³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154591139395 and 154591139404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7884359 + ... + 7903941.

It is an arithmetic number, because the mean of its divisors is an integer number (3380355072).

Almost surely, 2^154591139450 is an apocalyptic number.

154591139450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154591139450 is an abundant number, since it is smaller than the sum of its proper divisors (169922947462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154591139450 is a wasteful number, since it uses less digits than its factorization.

154591139450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20100 (or 20095 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 47.

The spelling of 154591139450 in words is "one hundred fifty-four billion, five hundred ninety-one million, one hundred thirty-nine thousand, four hundred fifty".