1023540229 has 2 divisors, whose sum is σ = 1023540230. Its totient is φ = 1023540228.

The previous prime is 1023540211. The next prime is 1023540247. The reversal of 1023540229 is 9220453201.

It is a balanced prime because it is at equal distance from previous prime (1023540211) and next prime (1023540247).

It can be written as a sum of positive squares in only one way, i.e., 930128004 + 93412225 = 30498^2 + 9665^2 .

It is an emirp because it is prime and its reverse (9220453201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023540229 - 2²⁷ = 889322501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1023540197 and 1023540206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023540209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511770114 + 511770115.

It is an arithmetic number, because the mean of its divisors is an integer number (511770115).

Almost surely, 2^1023540229 is an apocalyptic number.

It is an amenable number.

1023540229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023540229 is an equidigital number, since it uses as much as digits as its factorization.

1023540229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1023540229 is about 31992.8152715575. The cubic root of 1023540229 is about 1007.7859644263.

The spelling of 1023540229 in words is "one billion, twenty-three million, five hundred forty thousand, two hundred twenty-nine".