1415555140 has 24 divisors (see below), whose sum is σ = 3023052480. Its totient is φ = 556624608.

The previous prime is 1415555131. The next prime is 1415555149. The reversal of 1415555140 is 415555141.

It is an interprime number because it is at equal distance from previous prime (1415555131) and next prime (1415555149).

It is not an unprimeable number, because it can be changed into a prime (1415555149) 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, 598632 + ... + 600991.

It is an arithmetic number, because the mean of its divisors is an integer number (125960520).

Almost surely, 2^1415555140 is an apocalyptic number.

1415555140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1415555140 is an abundant number, since it is smaller than the sum of its proper divisors (1607497340).

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

1415555140 is a wasteful number, since it uses less digits than its factorization.

1415555140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199691 (or 1199689 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 1415555140 is about 37623.8639695606. The cubic root of 1415555140 is about 1122.8168730889.

Subtracting from 1415555140 its reverse (415555141), we obtain a palindrome (999999999).

The spelling of 1415555140 in words is "one billion, four hundred fifteen million, five hundred fifty-five thousand, one hundred forty".