145725337 has 2 divisors, whose sum is σ = 145725338. Its totient is φ = 145725336.

The previous prime is 145725311. The next prime is 145725347. The reversal of 145725337 is 733527541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84713616 + 61011721 = 9204^2 + 7811^2 .

It is an emirp because it is prime and its reverse (733527541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145725337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145725296 and 145725305.

It is not a weakly prime, because it can be changed into another prime (145725347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72862668 + 72862669.

It is an arithmetic number, because the mean of its divisors is an integer number (72862669).

Almost surely, 2^145725337 is an apocalyptic number.

It is an amenable number.

145725337 is a deficient number, since it is larger than the sum of its proper divisors (1).

145725337 is an equidigital number, since it uses as much as digits as its factorization.

145725337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 37.

The square root of 145725337 is about 12071.6749873412. The cubic root of 145725337 is about 526.2333355890.

The spelling of 145725337 in words is "one hundred forty-five million, seven hundred twenty-five thousand, three hundred thirty-seven".