1555141242 has 16 divisors (see below), whose sum is σ = 3111348960. Its totient is φ = 518202672.

The previous prime is 1555141229. The next prime is 1555141267. The reversal of 1555141242 is 2421415551.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24813 + ... + 61040.

It is an arithmetic number, because the mean of its divisors is an integer number (194459310).

Almost surely, 2^1555141242 is an apocalyptic number.

1555141242 is an abundant number, since it is smaller than the sum of its proper divisors (1556207718).

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

1555141242 is a wasteful number, since it uses less digits than its factorization.

1555141242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88877.

The product of its digits is 8000, while the sum is 30.

The square root of 1555141242 is about 39435.2791545844. The cubic root of 1555141242 is about 1158.5726702357.

Adding to 1555141242 its reverse (2421415551), we get a palindrome (3976556793).

The spelling of 1555141242 in words is "one billion, five hundred fifty-five million, one hundred forty-one thousand, two hundred forty-two".