145035050009 has 4 divisors (see below), whose sum is σ = 150036258660. Its totient is φ = 140033841360.

The previous prime is 145035049987. The next prime is 145035050021. The reversal of 145035050009 is 900050530541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900050530541 = 43 ⋅20931407687.

It can be written as a sum of positive squares in 2 ways, for example, as 71920512400 + 73114537609 = 268180^2 + 270397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145035050009 is a prime.

It is a super-2 number, since 2×145035050009² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145035050059) 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, 2500604282 + ... + 2500604339.

It is an arithmetic number, because the mean of its divisors is an integer number (37509064665).

Almost surely, 2^145035050009 is an apocalyptic number.

It is an amenable number.

145035050009 is a deficient number, since it is larger than the sum of its proper divisors (5001208651).

145035050009 is an equidigital number, since it uses as much as digits as its factorization.

145035050009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001208650.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 145035050009 in words is "one hundred forty-five billion, thirty-five million, fifty thousand, nine".