1814136157 has 8 divisors (see below), whose sum is σ = 1844837280. Its totient is φ = 1783466160.

The previous prime is 1814136119. The next prime is 1814136179. The reversal of 1814136157 is 7516314181.

It is a happy number.

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 1814136157 - 2¹¹ = 1814134109 is a prime.

It is a super-2 number, since 2×1814136157² = 6582179992269457298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814136187) 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, 130194 + ... + 143452.

It is an arithmetic number, because the mean of its divisors is an integer number (230604660).

Almost surely, 2^1814136157 is an apocalyptic number.

It is an amenable number.

1814136157 is a deficient number, since it is larger than the sum of its proper divisors (30701123).

1814136157 is a wasteful number, since it uses less digits than its factorization.

1814136157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15563.

The product of its digits is 20160, while the sum is 37.

The square root of 1814136157 is about 42592.6772696904. The cubic root of 1814136157 is about 1219.6165051479.

The spelling of 1814136157 in words is "one billion, eight hundred fourteen million, one hundred thirty-six thousand, one hundred fifty-seven".