145228272693 has 16 divisors (see below), whose sum is σ = 221306785920. Its totient is φ = 82985124096.

The previous prime is 145228272677. The next prime is 145228272697. The reversal of 145228272693 is 396272822541.

It is not a de Polignac number, because 145228272693 - 2⁴ = 145228272677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145228272697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812721 + ... + 975177.

It is an arithmetic number, because the mean of its divisors is an integer number (13831674120).

Almost surely, 2^145228272693 is an apocalyptic number.

It is an amenable number.

145228272693 is a deficient number, since it is larger than the sum of its proper divisors (76078513227).

145228272693 is a wasteful number, since it uses less digits than its factorization.

145228272693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205036.

The product of its digits is 2903040, while the sum is 51.

The spelling of 145228272693 in words is "one hundred forty-five billion, two hundred twenty-eight million, two hundred seventy-two thousand, six hundred ninety-three".