1125501408 has 36 divisors (see below), whose sum is σ = 3200645448. Its totient is φ = 375167040.

The previous prime is 1125501401. The next prime is 1125501437. The reversal of 1125501408 is 8041055211.

1125501408 is a `hidden beast` number, since 1 + 1 + 255 + 0 + 1 + 408 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125501401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1953708 + ... + 1954283.

It is an arithmetic number, because the mean of its divisors is an integer number (88906818).

Almost surely, 2^1125501408 is an apocalyptic number.

1125501408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1125501408 is an abundant number, since it is smaller than the sum of its proper divisors (2075144040).

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

1125501408 is a wasteful number, since it uses less digits than its factorization.

1125501408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908007 (or 3907996 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1125501408 is about 33548.4933789880. The cubic root of 1125501408 is about 1040.1964027495.

Adding to 1125501408 its reverse (8041055211), we get a palindrome (9166556619).

The spelling of 1125501408 in words is "one billion, one hundred twenty-five million, five hundred one thousand, four hundred eight".