145957573 has 2 divisors, whose sum is σ = 145957574. Its totient is φ = 145957572.

The previous prime is 145957571. The next prime is 145957577. The reversal of 145957573 is 375759541.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104509729 + 41447844 = 10223^2 + 6438^2 .

It is an emirp because it is prime and its reverse (375759541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145957573 - 2¹ = 145957571 is a prime.

It is a super-2 number, since 2×145957573² = 42607226232100658, which contains 22 as substring.

Together with 145957571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145957571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72978786 + 72978787.

It is an arithmetic number, because the mean of its divisors is an integer number (72978787).

Almost surely, 2^145957573 is an apocalyptic number.

It is an amenable number.

145957573 is a deficient number, since it is larger than the sum of its proper divisors (1).

145957573 is an equidigital number, since it uses as much as digits as its factorization.

145957573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661500, while the sum is 46.

The square root of 145957573 is about 12081.2902042787. The cubic root of 145957573 is about 526.5127321224.

The spelling of 145957573 in words is "one hundred forty-five million, nine hundred fifty-seven thousand, five hundred seventy-three".