145134877177 has 16 divisors (see below), whose sum is σ = 148931861760. Its totient is φ = 141378120000.

The previous prime is 145134877171. The next prime is 145134877247. The reversal of 145134877177 is 771778431541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145134877177 - 2¹¹ = 145134875129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145134877171) 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, 20412099 + ... + 20419207.

It is an arithmetic number, because the mean of its divisors is an integer number (9308241360).

Almost surely, 2^145134877177 is an apocalyptic number.

It is an amenable number.

145134877177 is a deficient number, since it is larger than the sum of its proper divisors (3796984583).

145134877177 is a wasteful number, since it uses less digits than its factorization.

145134877177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864.

The product of its digits is 4609920, while the sum is 55.

The spelling of 145134877177 in words is "one hundred forty-five billion, one hundred thirty-four million, eight hundred seventy-seven thousand, one hundred seventy-seven".