1145310140 has 48 divisors (see below), whose sum is σ = 2625688128. Its totient is φ = 417083904.

The previous prime is 1145310109. The next prime is 1145310143. The reversal of 1145310140 is 410135411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145310143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11192 + ... + 49151.

It is an arithmetic number, because the mean of its divisors is an integer number (54701836).

Almost surely, 2^1145310140 is an apocalyptic number.

1145310140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145310140 is an abundant number, since it is smaller than the sum of its proper divisors (1480377988).

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

1145310140 is a wasteful number, since it uses less digits than its factorization.

1145310140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60438 (or 60436 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1145310140 is about 33842.4310592487. The cubic root of 1145310140 is about 1046.2634048129.

Adding to 1145310140 its reverse (410135411), we get a palindrome (1555445551).

The spelling of 1145310140 in words is "one billion, one hundred forty-five million, three hundred ten thousand, one hundred forty".