145700233849 has 3 divisors (see below), whose sum is σ = 145700615557. Its totient is φ = 145699852142.

The previous prime is 145700233843. The next prime is 145700233867. The reversal of 145700233849 is 948332007541.

The square root of 145700233849 is 381707.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 145700233849 - 2⁵ = 145700233817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145700233799 and 145700233808.

It is not an unprimeable number, because it can be changed into a prime (145700233843) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 190854 + ... + 572560.

Almost surely, 2^145700233849 is an apocalyptic number.

145700233849 is the 381707-th square number.

145700233849 is the 190854-th centered octagonal number.

It is an amenable number.

145700233849 is a deficient number, since it is larger than the sum of its proper divisors (381708).

145700233849 is an frugal number, since it uses more digits than its factorization.

145700233849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763414 (or 381707 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 145700233849 in words is "one hundred forty-five billion, seven hundred million, two hundred thirty-three thousand, eight hundred forty-nine".