1023511164 has 48 divisors (see below), whose sum is σ = 2573934720. Its totient is φ = 314677440.

The previous prime is 1023511157. The next prime is 1023511183. The reversal of 1023511164 is 4611153201.

It is a happy 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, 338419 + ... + 341429.

It is an arithmetic number, because the mean of its divisors is an integer number (53623640).

Almost surely, 2^1023511164 is an apocalyptic number.

It is an amenable number.

1023511164 is an abundant number, since it is smaller than the sum of its proper divisors (1550423556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023511164 is a wasteful number, since it uses less digits than its factorization.

1023511164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210 (or 5208 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1023511164 is about 31992.3610257199. The cubic root of 1023511164 is about 1007.7764251249.

Adding to 1023511164 its reverse (4611153201), we get a palindrome (5634664365).

The spelling of 1023511164 in words is "one billion, twenty-three million, five hundred eleven thousand, one hundred sixty-four".