145179897 has 8 divisors (see below), whose sum is σ = 198805056. Its totient is φ = 94170672.

The previous prime is 145179889. The next prime is 145179899. The reversal of 145179897 is 798971541.

It is a happy number.

145179897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145179897 - 2³ = 145179889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145179899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653853 + ... + 654074.

It is an arithmetic number, because the mean of its divisors is an integer number (24850632).

Almost surely, 2^145179897 is an apocalyptic number.

It is an amenable number.

145179897 is a deficient number, since it is larger than the sum of its proper divisors (53625159).

145179897 is a wasteful number, since it uses less digits than its factorization.

145179897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307967.

The product of its digits is 635040, while the sum is 51.

The square root of 145179897 is about 12049.0620796807. The cubic root of 145179897 is about 525.5759629074.

The spelling of 145179897 in words is "one hundred forty-five million, one hundred seventy-nine thousand, eight hundred ninety-seven".