1814532957 has 6 divisors (see below), whose sum is σ = 2620992062. Its totient is φ = 1209688632.

The previous prime is 1814532949. The next prime is 1814532971. The reversal of 1814532957 is 7592354181.

1814532957 is a `hidden beast` number, since 18 + 14 + 532 + 95 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1621350756 + 193182201 = 40266^2 + 13899^2 .

It is not a de Polignac number, because 1814532957 - 2³ = 1814532949 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 (1814532977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100807378 + ... + 100807395.

Almost surely, 2^1814532957 is an apocalyptic number.

It is an amenable number.

1814532957 is a deficient number, since it is larger than the sum of its proper divisors (806459105).

1814532957 is a wasteful number, since it uses less digits than its factorization.

1814532957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201614779 (or 201614776 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 1814532957 is about 42597.3350927027. The cubic root of 1814532957 is about 1219.7054195600.

The spelling of 1814532957 in words is "one billion, eight hundred fourteen million, five hundred thirty-two thousand, nine hundred fifty-seven".