1145401500 has 48 divisors (see below), whose sum is σ = 3335413536. Its totient is φ = 305440000.

The previous prime is 1145401483. The next prime is 1145401549. The reversal of 1145401500 is 51045411.

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, 380301 + ... + 383300.

It is an arithmetic number, because the mean of its divisors is an integer number (69487782).

Almost surely, 2^1145401500 is an apocalyptic number.

1145401500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145401500 is an abundant number, since it is smaller than the sum of its proper divisors (2190012036).

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

1145401500 is a wasteful number, since it uses less digits than its factorization.

1145401500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763623 (or 763611 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1145401500 is about 33843.7808171605. The cubic root of 1145401500 is about 1046.2912237939.

Adding to 1145401500 its reverse (51045411), we get a palindrome (1196446911).

The spelling of 1145401500 in words is "one billion, one hundred forty-five million, four hundred one thousand, five hundred".