2087181337 has 2 divisors, whose sum is σ = 2087181338. Its totient is φ = 2087181336.

The previous prime is 2087181281. The next prime is 2087181347. The reversal of 2087181337 is 7331817802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1168545856 + 918635481 = 34184^2 + 30309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2087181337 is a prime.

It is a super-2 number, since 2×2087181337² = 8712651867042215138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2087181337.

It is not a weakly prime, because it can be changed into another prime (2087181347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043590668 + 1043590669.

It is an arithmetic number, because the mean of its divisors is an integer number (1043590669).

Almost surely, 2^2087181337 is an apocalyptic number.

It is an amenable number.

2087181337 is a deficient number, since it is larger than the sum of its proper divisors (1).

2087181337 is an equidigital number, since it uses as much as digits as its factorization.

2087181337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2087181337 is about 45685.6797804301. The cubic root of 2087181337 is about 1277.9682400882.

The spelling of 2087181337 in words is "two billion, eighty-seven million, one hundred eighty-one thousand, three hundred thirty-seven".