1131555150145 has 16 divisors (see below), whose sum is σ = 1552006418688. Its totient is φ = 775843853760.

The previous prime is 1131555150119. The next prime is 1131555150191. The reversal of 1131555150145 is 5410515551311.

It is not a de Polignac number, because 1131555150145 - 2¹⁵ = 1131555117377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313226 + ... + 1996915.

It is an arithmetic number, because the mean of its divisors is an integer number (97000401168).

Almost surely, 2^{1131555150145} is an apocalyptic number.

It is an amenable number.

1131555150145 is a deficient number, since it is larger than the sum of its proper divisors (420451268543).

1131555150145 is an equidigital number, since it uses as much as digits as its factorization.

1131555150145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319920.

The product of its (nonzero) digits is 37500, while the sum is 37.

The spelling of 1131555150145 in words is "one trillion, one hundred thirty-one billion, five hundred fifty-five million, one hundred fifty thousand, one hundred forty-five".