1354120127881 has 6 divisors (see below), whose sum is σ = 1376682735246. Its totient is φ = 1331921433600.

The previous prime is 1354120127869. The next prime is 1354120127903. The reversal of 1354120127881 is 1887210214531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 44377214281 + 1309742913600 = 210659^2 + 1144440^2 .

It is not a de Polignac number, because 1354120127881 - 2⁹ = 1354120127369 is a prime.

It is a super-2 number, since 2×1354120127881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354120127281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181952760 + ... + 181960201.

It is an arithmetic number, because the mean of its divisors is an integer number (229447122541).

Almost surely, 2^{1354120127881} is an apocalyptic number.

It is an amenable number.

1354120127881 is a deficient number, since it is larger than the sum of its proper divisors (22562607365).

1354120127881 is an frugal number, since it uses more digits than its factorization.

1354120127881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363913083 (or 363913022 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 1354120127881 in words is "one trillion, three hundred fifty-four billion, one hundred twenty million, one hundred twenty-seven thousand, eight hundred eighty-one".