1142115464 has 32 divisors (see below), whose sum is σ = 2449401600. Its totient is φ = 489075840.

The previous prime is 1142115461. The next prime is 1142115493. The reversal of 1142115464 is 4645112411.

It is not an unprimeable number, because it can be changed into a prime (1142115461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66257 + ... + 81695.

It is an arithmetic number, because the mean of its divisors is an integer number (76543800).

Almost surely, 2^1142115464 is an apocalyptic number.

1142115464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1142115464 is an abundant number, since it is smaller than the sum of its proper divisors (1307286136).

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

1142115464 is a wasteful number, since it uses less digits than its factorization.

1142115464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16773 (or 16769 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 1142115464 is about 33795.1988306031. The cubic root of 1142115464 is about 1045.2896990664.

Adding to 1142115464 its reverse (4645112411), we get a palindrome (5787227875).

The spelling of 1142115464 in words is "one billion, one hundred forty-two million, one hundred fifteen thousand, four hundred sixty-four".