1023542132 has 12 divisors (see below), whose sum is σ = 1795581060. Its totient is φ = 510518976.

The previous prime is 1023542131. The next prime is 1023542147. The reversal of 1023542132 is 2312453201.

It can be written as a sum of positive squares in 2 ways, for example, as 825183076 + 198359056 = 28726^2 + 14084^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1023542098 and 1023542107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023542131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311183 + ... + 314454.

It is an arithmetic number, because the mean of its divisors is an integer number (149631755).

Almost surely, 2^1023542132 is an apocalyptic number.

It is an amenable number.

1023542132 is a deficient number, since it is larger than the sum of its proper divisors (772038928).

1023542132 is a wasteful number, since it uses less digits than its factorization.

1023542132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626050 (or 626048 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1023542132 is about 31992.8450125962. The cubic root of 1023542132 is about 1007.7865889957.

Adding to 1023542132 its reverse (2312453201), we get a palindrome (3335995333).

The spelling of 1023542132 in words is "one billion, twenty-three million, five hundred forty-two thousand, one hundred thirty-two".