145369853 has 2 divisors, whose sum is σ = 145369854. Its totient is φ = 145369852.

The previous prime is 145369813. The next prime is 145369859. The reversal of 145369853 is 358963541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137428729 + 7941124 = 11723^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 145369853 - 2⁶ = 145369789 is a prime.

It is a super-2 number, since 2×145369853² = 42264788322483218, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145369859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72684926 + 72684927.

It is an arithmetic number, because the mean of its divisors is an integer number (72684927).

Almost surely, 2^145369853 is an apocalyptic number.

It is an amenable number.

145369853 is a deficient number, since it is larger than the sum of its proper divisors (1).

145369853 is an equidigital number, since it uses as much as digits as its factorization.

145369853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The square root of 145369853 is about 12056.9421081798. The cubic root of 145369853 is about 525.8050873678.

It can be divided in two parts, 14536 and 9853, that added together give a cube (24389 = 29³).

The spelling of 145369853 in words is "one hundred forty-five million, three hundred sixty-nine thousand, eight hundred fifty-three".