145697485 has 4 divisors (see below), whose sum is σ = 174836988. Its totient is φ = 116557984.

The previous prime is 145697483. The next prime is 145697501. The reversal of 145697485 is 584796541.

It is a happy number.

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 68591524 + 77105961 = 8282^2 + 8781^2 .

It is a cyclic number.

It is not a de Polignac number, because 145697485 - 2¹ = 145697483 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145697483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14569744 + ... + 14569753.

It is an arithmetic number, because the mean of its divisors is an integer number (43709247).

Almost surely, 2^145697485 is an apocalyptic number.

It is an amenable number.

145697485 is a deficient number, since it is larger than the sum of its proper divisors (29139503).

145697485 is an equidigital number, since it uses as much as digits as its factorization.

145697485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29139502.

The product of its digits is 1209600, while the sum is 49.

The square root of 145697485 is about 12070.5213226273. The cubic root of 145697485 is about 526.1998077093.

The spelling of 145697485 in words is "one hundred forty-five million, six hundred ninety-seven thousand, four hundred eighty-five".