1554542121130 has 8 divisors (see below), whose sum is σ = 2798175818052. Its totient is φ = 621816848448.

The previous prime is 1554542121107. The next prime is 1554542121169. The reversal of 1554542121130 is 311212454551.

It can be written as a sum of positive squares in 2 ways, for example, as 1474531775809 + 80010345321 = 1214303^2 + 282861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77727106047 + ... + 77727106066.

Almost surely, 2^{1554542121130} is an apocalyptic number.

1554542121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1554542121130 is a deficient number, since it is larger than the sum of its proper divisors (1243633696922).

1554542121130 is a wasteful number, since it uses less digits than its factorization.

1554542121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155454212120.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 1554542121130 its reverse (311212454551), we get a palindrome (1865754575681).

It can be divided in two parts, 15545421 and 21130, that added together give a palindrome (15566551).

The spelling of 1554542121130 in words is "one trillion, five hundred fifty-four billion, five hundred forty-two million, one hundred twenty-one thousand, one hundred thirty".