145999497 has 8 divisors (see below), whose sum is σ = 222475456. Its totient is φ = 83428272.

The previous prime is 145999463. The next prime is 145999507. The reversal of 145999497 is 794999541.

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

It is not a de Polignac number, because 145999497 - 2⁶ = 145999433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145999297) 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 7 ways as a sum of consecutive naturals, for example, 3476158 + ... + 3476199.

It is an arithmetic number, because the mean of its divisors is an integer number (27809432).

Almost surely, 2^145999497 is an apocalyptic number.

It is an amenable number.

145999497 is a deficient number, since it is larger than the sum of its proper divisors (76475959).

145999497 is an equidigital number, since it uses as much as digits as its factorization.

145999497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952367.

The product of its digits is 3674160, while the sum is 57.

The square root of 145999497 is about 12083.0251592885. The cubic root of 145999497 is about 526.5631381097.

The spelling of 145999497 in words is "one hundred forty-five million, nine hundred ninety-nine thousand, four hundred ninety-seven".