187414481 has 2 divisors, whose sum is σ = 187414482. Its totient is φ = 187414480.

The previous prime is 187414471. The next prime is 187414483. The reversal of 187414481 is 184414781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96040000 + 91374481 = 9800^2 + 9559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187414481 is a prime.

It is a super-2 number, since 2×187414481² = 70248375376998722, which contains 22 as substring.

Together with 187414483, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 187414481 parts by 19360 straight cuts.

It is not a weakly prime, because it can be changed into another prime (187414483) 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 as a sum of consecutive naturals, namely, 93707240 + 93707241.

It is an arithmetic number, because the mean of its divisors is an integer number (93707241).

Almost surely, 2^187414481 is an apocalyptic number.

It is an amenable number.

187414481 is a deficient number, since it is larger than the sum of its proper divisors (1).

187414481 is an equidigital number, since it uses as much as digits as its factorization.

187414481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28672, while the sum is 38.

The square root of 187414481 is about 13689.9408691199. The cubic root of 187414481 is about 572.2700904283.

The spelling of 187414481 in words is "one hundred eighty-seven million, four hundred fourteen thousand, four hundred eighty-one".