145541464915 has 32 divisors (see below), whose sum is σ = 224769208320. Its totient is φ = 87800457600.

The previous prime is 145541464909. The next prime is 145541464967. The reversal of 145541464915 is 519464145541.

It is not a de Polignac number, because 145541464915 - 2⁹ = 145541464403 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6085320 + ... + 6109189.

It is an arithmetic number, because the mean of its divisors is an integer number (7024037760).

Almost surely, 2^145541464915 is an apocalyptic number.

145541464915 is a deficient number, since it is larger than the sum of its proper divisors (79227743405).

145541464915 is a wasteful number, since it uses less digits than its factorization.

145541464915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12194563.

The product of its digits is 1728000, while the sum is 49.

The spelling of 145541464915 in words is "one hundred forty-five billion, five hundred forty-one million, four hundred sixty-four thousand, nine hundred fifteen".