154227915272 has 36 divisors (see below), whose sum is σ = 296150508045. Its totient is φ = 75297283488.

The previous prime is 154227915269. The next prime is 154227915293. The reversal of 154227915272 is 272519722451.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 147844864036 + 6383051236 = 384506^2 + 79894^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=277694.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47761754 + ... + 47764982.

Almost surely, 2^154227915272 is an apocalyptic number.

It is an amenable number.

154227915272 is a deficient number, since it is larger than the sum of its proper divisors (141922592773).

154227915272 is an frugal number, since it uses more digits than its factorization.

154227915272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550 (or 3274 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

It can be divided in two parts, 1542279 and 15272, that added together give a palindrome (1557551).

The spelling of 154227915272 in words is "one hundred fifty-four billion, two hundred twenty-seven million, nine hundred fifteen thousand, two hundred seventy-two".