1023232157 has 2 divisors, whose sum is σ = 1023232158. Its totient is φ = 1023232156.

The previous prime is 1023232129. The next prime is 1023232181. The reversal of 1023232157 is 7512323201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987782041 + 35450116 = 31429^2 + 5954^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023232157 - 2⁸ = 1023231901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023232127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511616078 + 511616079.

It is an arithmetic number, because the mean of its divisors is an integer number (511616079).

Almost surely, 2^1023232157 is an apocalyptic number.

It is an amenable number.

1023232157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023232157 is an equidigital number, since it uses as much as digits as its factorization.

1023232157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 1023232157 is about 31988.0002032012. Note that the first 3 decimals coincide. The cubic root of 1023232157 is about 1007.6848442218.

Adding to 1023232157 its reverse (7512323201), we get a palindrome (8535555358).

The spelling of 1023232157 in words is "one billion, twenty-three million, two hundred thirty-two thousand, one hundred fifty-seven".