154203215413252 has 24 divisors (see below), whose sum is σ = 273887961463424. Its totient is φ = 75949551117792.

The previous prime is 154203215413231. The next prime is 154203215413327. The reversal of 154203215413252 is 252314512302451.

It is a super-2 number, since 2×154203215413252² (a number of 29 digits) contains 22 as substring.

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, 11078338 + ... + 20763814.

Almost surely, 2^{154203215413252} is an apocalyptic number.

It is an amenable number.

154203215413252 is a deficient number, since it is larger than the sum of its proper divisors (119684746050172).

154203215413252 is a wasteful number, since it uses less digits than its factorization.

154203215413252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9744955 (or 9744953 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 154203215413252 in words is "one hundred fifty-four trillion, two hundred three billion, two hundred fifteen million, four hundred thirteen thousand, two hundred fifty-two".