145039205701 has 4 divisors (see below), whose sum is σ = 156196067692. Its totient is φ = 133882343712.

The previous prime is 145039205699. The next prime is 145039205737. The reversal of 145039205701 is 107502930541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 107502930541 = 167 ⋅643730123.

It can be written as a sum of positive squares in 2 ways, for example, as 7123528801 + 137915676900 = 84401^2 + 371370^2 .

It is not a de Polignac number, because 145039205701 - 2¹ = 145039205699 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145039205741) 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, 5578430976 + ... + 5578431001.

It is an arithmetic number, because the mean of its divisors is an integer number (39049016923).

Almost surely, 2^145039205701 is an apocalyptic number.

It is an amenable number.

145039205701 is a deficient number, since it is larger than the sum of its proper divisors (11156861991).

145039205701 is a wasteful number, since it uses less digits than its factorization.

145039205701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156861990.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 145039205701 in words is "one hundred forty-five billion, thirty-nine million, two hundred five thousand, seven hundred one".