8153909401 has 9 divisors (see below), whose sum is σ = 8963653503. Its totient is φ = 7411741920.

The previous prime is 8153909389. The next prime is 8153909411. The reversal of 8153909401 is 1049093518.

The square root of 8153909401 is 90299.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 564015001 + 7589894400 = 23749^2 + 87120^2 .

It is not a de Polignac number, because 8153909401 - 2³¹ = 6006425753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8153909411) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 989185 + ... + 997393.

Almost surely, 2^8153909401 is an apocalyptic number.

8153909401 is the 90299-th square number.

8153909401 is the 45150-th centered octagonal number.

It is an amenable number.

8153909401 is a deficient number, since it is larger than the sum of its proper divisors (809744102).

8153909401 is an frugal number, since it uses more digits than its factorization.

8153909401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16440 (or 8220 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The cubic root of 8153909401 is about 2012.7444010425.

The spelling of 8153909401 in words is "eight billion, one hundred fifty-three million, nine hundred nine thousand, four hundred one".