1555014140 has 24 divisors (see below), whose sum is σ = 3457620432. Its totient is φ = 585416960.

The previous prime is 1555014137. The next prime is 1555014151. The reversal of 1555014140 is 414105551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286446 + ... + 2287125.

It is an arithmetic number, because the mean of its divisors is an integer number (144067518).

Almost surely, 2^1555014140 is an apocalyptic number.

1555014140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1555014140 is an abundant number, since it is smaller than the sum of its proper divisors (1902606292).

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

1555014140 is a wasteful number, since it uses less digits than its factorization.

1555014140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4573597 (or 4573595 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1555014140 is about 39433.6675950894. The cubic root of 1555014140 is about 1158.5411059182.

Adding to 1555014140 its reverse (414105551), we get a palindrome (1969119691).

The spelling of 1555014140 in words is "one billion, five hundred fifty-five million, fourteen thousand, one hundred forty".