2273537731 has 2 divisors, whose sum is σ = 2273537732. Its totient is φ = 2273537730.

The previous prime is 2273537729. The next prime is 2273537837. The reversal of 2273537731 is 1377353722.

It is a happy number.

2273537731 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 is a cyclic number.

It is not a de Polignac number, because 2273537731 - 2¹ = 2273537729 is a prime.

It is a super-2 number, since 2×2273537731² = 10337947628561256722, which contains 22 as substring.

Together with 2273537729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2273537711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136768865 + 1136768866.

It is an arithmetic number, because the mean of its divisors is an integer number (1136768866).

Almost surely, 2^2273537731 is an apocalyptic number.

2273537731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273537731 is an equidigital number, since it uses as much as digits as its factorization.

2273537731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185220, while the sum is 40.

The square root of 2273537731 is about 47681.6288626972. The cubic root of 2273537731 is about 1314.9242113935.

The spelling of 2273537731 in words is "two billion, two hundred seventy-three million, five hundred thirty-seven thousand, seven hundred thirty-one".