145722118077 has 12 divisors (see below), whose sum is σ = 210541291740. Its totient is φ = 97123253568.

The previous prime is 145722118043. The next prime is 145722118133. The reversal of 145722118077 is 770811227541.

It is a happy number.

145722118077 is a `hidden beast` number, since 1 + 4 + 572 + 2 + 1 + 1 + 8 + 0 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 76187592441 + 69534525636 = 276021^2 + 263694^2 .

It is not a de Polignac number, because 145722118077 - 2¹⁰ = 145722117053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145722118777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2031552 + ... + 2102057.

It is an arithmetic number, because the mean of its divisors is an integer number (17545107645).

Almost surely, 2^145722118077 is an apocalyptic number.

It is an amenable number.

145722118077 is a deficient number, since it is larger than the sum of its proper divisors (64819173663).

145722118077 is a wasteful number, since it uses less digits than its factorization.

145722118077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137532 (or 4137529 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 45.

The spelling of 145722118077 in words is "one hundred forty-five billion, seven hundred twenty-two million, one hundred eighteen thousand, seventy-seven".