4157561343 has 8 divisors (see below), whose sum is σ = 5969831728. Its totient is φ = 2558499264.

The previous prime is 4157561341. The next prime is 4157561377. The reversal of 4157561343 is 3431657514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4157561343 - 2¹ = 4157561341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 106604137 = 4157561343 / (4 + 1 + 5 + 7 + 5 + 6 + 1 + 3 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157561341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53302030 + ... + 53302107.

It is an arithmetic number, because the mean of its divisors is an integer number (746228966).

Almost surely, 2^4157561343 is an apocalyptic number.

4157561343 is a deficient number, since it is larger than the sum of its proper divisors (1812270385).

4157561343 is a wasteful number, since it uses less digits than its factorization.

4157561343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106604153.

The product of its digits is 151200, while the sum is 39.

The square root of 4157561343 is about 64479.1543291318. The cubic root of 4157561343 is about 1607.9759737041.

The spelling of 4157561343 in words is "four billion, one hundred fifty-seven million, five hundred sixty-one thousand, three hundred forty-three".