145706257077 has 4 divisors (see below), whose sum is σ = 194275009440. Its totient is φ = 97137504716.

The previous prime is 145706257069. The next prime is 145706257093. The reversal of 145706257077 is 770752607541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145706257077 - 2³ = 145706257069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145706257007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24284376177 + ... + 24284376182.

It is an arithmetic number, because the mean of its divisors is an integer number (48568752360).

Almost surely, 2^145706257077 is an apocalyptic number.

It is an amenable number.

145706257077 is a deficient number, since it is larger than the sum of its proper divisors (48568752363).

145706257077 is an equidigital number, since it uses as much as digits as its factorization.

145706257077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48568752362.

The product of its (nonzero) digits is 2881200, while the sum is 51.

The spelling of 145706257077 in words is "one hundred forty-five billion, seven hundred six million, two hundred fifty-seven thousand, seventy-seven".