748002181 has 2 divisors, whose sum is σ = 748002182. Its totient is φ = 748002180.

The previous prime is 748002179. The next prime is 748002217. The reversal of 748002181 is 181200847.

748002181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723341025 + 24661156 = 26895^2 + 4966^2 .

It is an emirp because it is prime and its reverse (181200847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 748002181 - 2¹ = 748002179 is a prime.

It is a super-2 number, since 2×748002181² = 1119014525561513522, which contains 22 as substring.

Together with 748002179, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (748002161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374001090 + 374001091.

It is an arithmetic number, because the mean of its divisors is an integer number (374001091).

Almost surely, 2^748002181 is an apocalyptic number.

It is an amenable number.

748002181 is a deficient number, since it is larger than the sum of its proper divisors (1).

748002181 is an equidigital number, since it uses as much as digits as its factorization.

748002181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 748002181 is about 27349.6285349545. The cubic root of 748002181 is about 907.7528505896.

The spelling of 748002181 in words is "seven hundred forty-eight million, two thousand, one hundred eighty-one".