145713145 has 8 divisors (see below), whose sum is σ = 175822920. Its totient is φ = 115925760.

The previous prime is 145713143. The next prime is 145713157. The reversal of 145713145 is 541317541.

It can be written as a sum of positive squares in 4 ways, for example, as 19105641 + 126607504 = 4371^2 + 11252^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145713145 - 2¹ = 145713143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145713143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79600 + ... + 81409.

It is an arithmetic number, because the mean of its divisors is an integer number (21977865).

Almost surely, 2^145713145 is an apocalyptic number.

It is an amenable number.

145713145 is a deficient number, since it is larger than the sum of its proper divisors (30109775).

145713145 is a wasteful number, since it uses less digits than its factorization.

145713145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161195.

The product of its digits is 8400, while the sum is 31.

The square root of 145713145 is about 12071.1699930040. The cubic root of 145713145 is about 526.2186595419.

The spelling of 145713145 in words is "one hundred forty-five million, seven hundred thirteen thousand, one hundred forty-five".