1023406135 has 16 divisors (see below), whose sum is σ = 1237876992. Its totient is φ = 812224000.

The previous prime is 1023406127. The next prime is 1023406151. The reversal of 1023406135 is 5316043201.

It is not a de Polignac number, because 1023406135 - 2³ = 1023406127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393690 + ... + 396280.

It is an arithmetic number, because the mean of its divisors is an integer number (77367312).

Almost surely, 2^1023406135 is an apocalyptic number.

1023406135 is a deficient number, since it is larger than the sum of its proper divisors (214470857).

1023406135 is a wasteful number, since it uses less digits than its factorization.

1023406135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1023406135 is about 31990.7195136340. The cubic root of 1023406135 is about 1007.7419524930.

Adding to 1023406135 its reverse (5316043201), we get a palindrome (6339449336).

The spelling of 1023406135 in words is "one billion, twenty-three million, four hundred six thousand, one hundred thirty-five".