1545156121441 has 4 divisors (see below), whose sum is σ = 1545337082800. Its totient is φ = 1544975160084.

The previous prime is 1545156121387. The next prime is 1545156121463. The reversal of 1545156121441 is 1441216515451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1545156121441 - 2⁹ = 1545156120929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1545156121394 and 1545156121403.

It is not an unprimeable number, because it can be changed into a prime (1545156121541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90467871 + ... + 90484948.

It is an arithmetic number, because the mean of its divisors is an integer number (386334270700).

Almost surely, 2^{1545156121441} is an apocalyptic number.

It is an amenable number.

1545156121441 is a deficient number, since it is larger than the sum of its proper divisors (180961359).

1545156121441 is an equidigital number, since it uses as much as digits as its factorization.

1545156121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180961358.

The product of its digits is 96000, while the sum is 40.

The spelling of 1545156121441 in words is "one trillion, five hundred forty-five billion, one hundred fifty-six million, one hundred twenty-one thousand, four hundred forty-one".