8153457434 has 4 divisors (see below), whose sum is σ = 12230186154. Its totient is φ = 4076728716.

The previous prime is 8153457421. The next prime is 8153457439. The reversal of 8153457434 is 4347543518.

It is a happy number.

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., 7794241225 + 359216209 = 88285^2 + 18953^2 .

It is not an unprimeable number, because it can be changed into a prime (8153457439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2038364357 + ... + 2038364360.

Almost surely, 2^8153457434 is an apocalyptic number.

8153457434 is a deficient number, since it is larger than the sum of its proper divisors (4076728720).

8153457434 is a wasteful number, since it uses less digits than its factorization.

8153457434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076728719.

The product of its digits is 806400, while the sum is 44.

The square root of 8153457434 is about 90296.4973517799. The cubic root of 8153457434 is about 2012.7072118934.

The spelling of 8153457434 in words is "eight billion, one hundred fifty-three million, four hundred fifty-seven thousand, four hundred thirty-four".