145078751 has 4 divisors (see below), whose sum is σ = 145303632. Its totient is φ = 144853872.

The previous prime is 145078727. The next prime is 145078777. The reversal of 145078751 is 157870541.

It is a happy number.

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 145078751 - 2¹⁴ = 145062367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145078711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111470 + ... + 112763.

It is an arithmetic number, because the mean of its divisors is an integer number (36325908).

Almost surely, 2^145078751 is an apocalyptic number.

145078751 is a deficient number, since it is larger than the sum of its proper divisors (224881).

145078751 is an equidigital number, since it uses as much as digits as its factorization.

145078751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224880.

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 145078751 is about 12044.8640922179. The cubic root of 145078751 is about 525.4538793002.

The spelling of 145078751 in words is "one hundred forty-five million, seventy-eight thousand, seven hundred fifty-one".