145210553 has 2 divisors, whose sum is σ = 145210554. Its totient is φ = 145210552.

The previous prime is 145210501. The next prime is 145210577. The reversal of 145210553 is 355012541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133356304 + 11854249 = 11548^2 + 3443^2 .

It is a cyclic number.

It is not a de Polignac number, because 145210553 - 2⁸ = 145210297 is a prime.

It is a super-2 number, since 2×145210553² = 42172209405131618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145210853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72605276 + 72605277.

It is an arithmetic number, because the mean of its divisors is an integer number (72605277).

Almost surely, 2^145210553 is an apocalyptic number.

It is an amenable number.

145210553 is a deficient number, since it is larger than the sum of its proper divisors (1).

145210553 is an equidigital number, since it uses as much as digits as its factorization.

145210553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 145210553 is about 12050.3341447447. The cubic root of 145210553 is about 525.6129536182.

The spelling of 145210553 in words is "one hundred forty-five million, two hundred ten thousand, five hundred fifty-three".