2018157361 has 4 divisors (see below), whose sum is σ = 2201626224. Its totient is φ = 1834688500.

The previous prime is 2018157353. The next prime is 2018157413. The reversal of 2018157361 is 1637518102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2018157361 - 2³ = 2018157353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2018157301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91734415 + ... + 91734436.

It is an arithmetic number, because the mean of its divisors is an integer number (550406556).

Almost surely, 2^2018157361 is an apocalyptic number.

It is an amenable number.

2018157361 is a deficient number, since it is larger than the sum of its proper divisors (183468863).

2018157361 is a wasteful number, since it uses less digits than its factorization.

2018157361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183468862.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 2018157361 is about 44923.9063417241. The cubic root of 2018157361 is about 1263.7223762120.

The spelling of 2018157361 in words is "two billion, eighteen million, one hundred fifty-seven thousand, three hundred sixty-one".