145119897 has 32 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 86417280.

The previous prime is 145119889. The next prime is 145119899. The reversal of 145119897 is 798911541.

It is a happy number.

145119897 is a `hidden beast` number, since 1 + 451 + 198 + 9 + 7 = 666.

It is not a de Polignac number, because 145119897 - 2³ = 145119889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145119899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4213 + ... + 17549.

It is an arithmetic number, because the mean of its divisors is an integer number (7469280).

Almost surely, 2^145119897 is an apocalyptic number.

It is an amenable number.

145119897 is a deficient number, since it is larger than the sum of its proper divisors (93897063).

145119897 is a wasteful number, since it uses less digits than its factorization.

145119897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13390 (or 13384 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 145119897 is about 12046.5720020261. The cubic root of 145119897 is about 525.5035495232.

The spelling of 145119897 in words is "one hundred forty-five million, one hundred nineteen thousand, eight hundred ninety-seven".