145637953 has 2 divisors, whose sum is σ = 145637954. Its totient is φ = 145637952.

The previous prime is 145637941. The next prime is 145637959. The reversal of 145637953 is 359736541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133471809 + 12166144 = 11553^2 + 3488^2 .

It is a cyclic number.

It is not a de Polignac number, because 145637953 - 2⁹ = 145637441 is a prime.

It is not a weakly prime, because it can be changed into another prime (145637959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72818976 + 72818977.

It is an arithmetic number, because the mean of its divisors is an integer number (72818977).

Almost surely, 2^145637953 is an apocalyptic number.

It is an amenable number.

145637953 is a deficient number, since it is larger than the sum of its proper divisors (1).

145637953 is an equidigital number, since it uses as much as digits as its factorization.

145637953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 43.

The square root of 145637953 is about 12068.0550628508. The cubic root of 145637953 is about 526.1281295229.

The spelling of 145637953 in words is "one hundred forty-five million, six hundred thirty-seven thousand, nine hundred fifty-three".