2031387229 has 2 divisors, whose sum is σ = 2031387230. Its totient is φ = 2031387228.

The previous prime is 2031387217. The next prime is 2031387257. The reversal of 2031387229 is 9227831302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1876882329 + 154504900 = 43323^2 + 12430^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031387229 - 2¹⁵ = 2031354461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031387629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015693614 + 1015693615.

It is an arithmetic number, because the mean of its divisors is an integer number (1015693615).

Almost surely, 2^2031387229 is an apocalyptic number.

It is an amenable number.

2031387229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031387229 is an equidigital number, since it uses as much as digits as its factorization.

2031387229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2031387229 is about 45070.9133366521. The cubic root of 2031387229 is about 1266.4777741026.

The spelling of 2031387229 in words is "two billion, thirty-one million, three hundred eighty-seven thousand, two hundred twenty-nine".