145571713 has 4 divisors (see below), whose sum is σ = 166367680. Its totient is φ = 124775748.

The previous prime is 145571707. The next prime is 145571743. The reversal of 145571713 is 317175541.

It is a happy number.

145571713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 317175541 = 1451 ⋅218591.

It is a cyclic number.

It is not a de Polignac number, because 145571713 - 2²⁵ = 112017281 is a prime.

It is a super-2 number, since 2×145571713² = 42382247251508738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145571743) 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, 10397973 + ... + 10397986.

It is an arithmetic number, because the mean of its divisors is an integer number (41591920).

Almost surely, 2^145571713 is an apocalyptic number.

It is an amenable number.

145571713 is a deficient number, since it is larger than the sum of its proper divisors (20795967).

145571713 is an equidigital number, since it uses as much as digits as its factorization.

145571713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20795966.

The product of its digits is 14700, while the sum is 34.

The square root of 145571713 is about 12065.3103151142. The cubic root of 145571713 is about 526.0483517552.

The spelling of 145571713 in words is "one hundred forty-five million, five hundred seventy-one thousand, seven hundred thirteen".