145442119491 has 12 divisors (see below), whose sum is σ = 210209868232. Its totient is φ = 96902886816.

The previous prime is 145442119469. The next prime is 145442119517. The reversal of 145442119491 is 194911244541.

145442119491 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 42 + 119 + 491 = 666.

145442119491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145442119491 - 2¹⁵ = 145442086723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145442119891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4861441 + ... + 4891266.

Almost surely, 2^145442119491 is an apocalyptic number.

145442119491 is a deficient number, since it is larger than the sum of its proper divisors (64767748741).

145442119491 is a wasteful number, since it uses less digits than its factorization.

145442119491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9754370 (or 9754367 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 145442119491 in words is "one hundred forty-five billion, four hundred forty-two million, one hundred nineteen thousand, four hundred ninety-one".