145306299 has 4 divisors (see below), whose sum is σ = 193741736. Its totient is φ = 96870864.

The previous prime is 145306297. The next prime is 145306303. The reversal of 145306299 is 992603541.

145306299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145306299 - 2¹ = 145306297 is a prime.

It is a super-2 number, since 2×145306299² = 42227841058154802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145306297) 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, 24217714 + ... + 24217719.

It is an arithmetic number, because the mean of its divisors is an integer number (48435434).

Almost surely, 2^145306299 is an apocalyptic number.

145306299 is a deficient number, since it is larger than the sum of its proper divisors (48435437).

145306299 is an equidigital number, since it uses as much as digits as its factorization.

145306299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48435436.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 145306299 is about 12054.3062429988. The cubic root of 145306299 is about 525.7284509198.

The spelling of 145306299 in words is "one hundred forty-five million, three hundred six thousand, two hundred ninety-nine".