145787493 has 8 divisors (see below), whose sum is σ = 195547968. Its totient is φ = 96609344.

The previous prime is 145787449. The next prime is 145787503. The reversal of 145787493 is 394787541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145787493 - 2¹² = 145783397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145787413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144996 + ... + 145997.

It is an arithmetic number, because the mean of its divisors is an integer number (24443496).

Almost surely, 2^145787493 is an apocalyptic number.

It is an amenable number.

145787493 is a deficient number, since it is larger than the sum of its proper divisors (49760475).

145787493 is a wasteful number, since it uses less digits than its factorization.

145787493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291163.

The product of its digits is 846720, while the sum is 48.

The square root of 145787493 is about 12074.2491692030. The cubic root of 145787493 is about 526.3081427814.

Adding to 145787493 its sum of digits (48), we get a palindrome (145787541).

The spelling of 145787493 in words is "one hundred forty-five million, seven hundred eighty-seven thousand, four hundred ninety-three".