145361653 has 4 divisors (see below), whose sum is σ = 146995020. Its totient is φ = 143728288.

The previous prime is 145361639. The next prime is 145361677. The reversal of 145361653 is 356163541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93837969 + 51523684 = 9687^2 + 7178^2 .

It is a cyclic number.

It is not a de Polignac number, because 145361653 - 2⁵ = 145361621 is a prime.

It is a super-2 number, since 2×145361653² = 42260020325784818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145361683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816550 + ... + 816727.

It is an arithmetic number, because the mean of its divisors is an integer number (36748755).

Almost surely, 2^145361653 is an apocalyptic number.

It is an amenable number.

145361653 is a deficient number, since it is larger than the sum of its proper divisors (1633367).

145361653 is an equidigital number, since it uses as much as digits as its factorization.

145361653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633366.

The product of its digits is 32400, while the sum is 34.

The square root of 145361653 is about 12056.6020503291. The cubic root of 145361653 is about 525.7952006714.

The spelling of 145361653 in words is "one hundred forty-five million, three hundred sixty-one thousand, six hundred fifty-three".