154215547452 has 36 divisors (see below), whose sum is σ = 394519299720. Its totient is φ = 50785841952.

The previous prime is 154215547441. The next prime is 154215547477. The reversal of 154215547452 is 254745512451.

154215547452 is a `hidden beast` number, since 1 + 5 + 4 + 2 + 155 + 47 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 154215547398 and 154215547407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25802827 + ... + 25808802.

Almost surely, 2^154215547452 is an apocalyptic number.

154215547452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154215547452 is an abundant number, since it is smaller than the sum of its proper divisors (240303752268).

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

154215547452 is a wasteful number, since it uses less digits than its factorization.

154215547452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51611722 (or 51611717 counting only the distinct ones).

The product of its digits is 1120000, while the sum is 45.

The spelling of 154215547452 in words is "one hundred fifty-four billion, two hundred fifteen million, five hundred forty-seven thousand, four hundred fifty-two".