1451107540 has 24 divisors (see below), whose sum is σ = 3052820232. Its totient is φ = 579396480.

The previous prime is 1451107499. The next prime is 1451107543. The reversal of 1451107540 is 457011541.

It can be written as a sum of positive squares in 4 ways, for example, as 43507216 + 1407600324 = 6596^2 + 37518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1451107499 and 1451107508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451107543) 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, 53991 + ... + 76270.

It is an arithmetic number, because the mean of its divisors is an integer number (127200843).

Almost surely, 2^1451107540 is an apocalyptic number.

1451107540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451107540 is an abundant number, since it is smaller than the sum of its proper divisors (1601712692).

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

1451107540 is a wasteful number, since it uses less digits than its factorization.

1451107540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130827 (or 130825 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1451107540 is about 38093.4054660383. The cubic root of 1451107540 is about 1132.1392997426.

The spelling of 1451107540 in words is "one billion, four hundred fifty-one million, one hundred seven thousand, five hundred forty".