8001156154 has 4 divisors (see below), whose sum is σ = 12001734234. Its totient is φ = 4000578076.

The previous prime is 8001156151. The next prime is 8001156169. The reversal of 8001156154 is 4516511008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7500426025 + 500730129 = 86605^2 + 22377^2 .

It is not an unprimeable number, because it can be changed into a prime (8001156151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000289037 + ... + 2000289040.

Almost surely, 2^8001156154 is an apocalyptic number.

8001156154 is a deficient number, since it is larger than the sum of its proper divisors (4000578080).

8001156154 is a wasteful number, since it uses less digits than its factorization.

8001156154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000578079.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 8001156154 is about 89449.1819638391. The cubic root of 8001156154 is about 2000.0963415257.

The spelling of 8001156154 in words is "eight billion, one million, one hundred fifty-six thousand, one hundred fifty-four".