145414723 has 4 divisors (see below), whose sum is σ = 147585160. Its totient is φ = 143244288.

The previous prime is 145414721. The next prime is 145414727. The reversal of 145414723 is 327414541.

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

It is a cyclic number.

It is not a de Polignac number, because 145414723 - 2¹ = 145414721 is a prime.

It is a super-2 number, since 2×145414723² = 42290883330333458, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (145414721) 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, 1085118 + ... + 1085251.

It is an arithmetic number, because the mean of its divisors is an integer number (36896290).

Almost surely, 2^145414723 is an apocalyptic number.

145414723 is a deficient number, since it is larger than the sum of its proper divisors (2170437).

145414723 is an equidigital number, since it uses as much as digits as its factorization.

145414723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170436.

The product of its digits is 13440, while the sum is 31.

The square root of 145414723 is about 12058.8027183465. The cubic root of 145414723 is about 525.8591803057.

The spelling of 145414723 in words is "one hundred forty-five million, four hundred fourteen thousand, seven hundred twenty-three".