145244537 has 2 divisors, whose sum is σ = 145244538. Its totient is φ = 145244536.

The previous prime is 145244527. The next prime is 145244587. The reversal of 145244537 is 735442541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135233641 + 10010896 = 11629^2 + 3164^2 .

It is a cyclic number.

It is not a de Polignac number, because 145244537 - 2⁴ = 145244521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145244497 and 145244506.

It is not a weakly prime, because it can be changed into another prime (145244507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72622268 + 72622269.

It is an arithmetic number, because the mean of its divisors is an integer number (72622269).

Almost surely, 2^145244537 is an apocalyptic number.

It is an amenable number.

145244537 is a deficient number, since it is larger than the sum of its proper divisors (1).

145244537 is an equidigital number, since it uses as much as digits as its factorization.

145244537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 145244537 is about 12051.7441476327. The cubic root of 145244537 is about 525.6539539380.

The spelling of 145244537 in words is "one hundred forty-five million, two hundred forty-four thousand, five hundred thirty-seven".