797540145 has 16 divisors (see below), whose sum is σ = 1276672320. Its totient is φ = 425152064.

The previous prime is 797540123. The next prime is 797540153. The reversal of 797540145 is 541045797.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 797540145 - 2⁷ = 797540017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 797540097 and 797540106.

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, 23122 + ... + 46148.

It is an arithmetic number, because the mean of its divisors is an integer number (79792020).

Almost surely, 2^797540145 is an apocalyptic number.

It is an amenable number.

797540145 is a deficient number, since it is larger than the sum of its proper divisors (479132175).

797540145 is a wasteful number, since it uses less digits than its factorization.

797540145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25344.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 797540145 is about 28240.7532654496. The cubic root of 797540145 is about 927.3653202294.

The spelling of 797540145 in words is "seven hundred ninety-seven million, five hundred forty thousand, one hundred forty-five".