4193019157 has 8 divisors (see below), whose sum is σ = 4275345240. Its totient is φ = 4110812160.

The previous prime is 4193019137. The next prime is 4193019169. The reversal of 4193019157 is 7519103914.

It can be written as a sum of positive squares in 4 ways, for example, as 1431411556 + 2761607601 = 37834^2 + 52551^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4193019157 - 2¹⁹ = 4192494869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4193019137) 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, 43069 + ... + 101197.

It is an arithmetic number, because the mean of its divisors is an integer number (534418155).

Almost surely, 2^4193019157 is an apocalyptic number.

It is an amenable number.

4193019157 is a deficient number, since it is larger than the sum of its proper divisors (82326083).

4193019157 is a wasteful number, since it uses less digits than its factorization.

4193019157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59543.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 4193019157 is about 64753.5262128635. The cubic root of 4193019157 is about 1612.5342541208.

The spelling of 4193019157 in words is "four billion, one hundred ninety-three million, nineteen thousand, one hundred fifty-seven".