145073767 has 4 divisors (see below), whose sum is σ = 153607536. Its totient is φ = 136540000.

The previous prime is 145073711. The next prime is 145073779. The reversal of 145073767 is 767370541.

145073767 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, and also an emirpimes, since its reverse is a distinct semiprime: 767370541 = 7 ⋅109624363.

It is a cyclic number.

It is not a de Polignac number, because 145073767 - 2⁷ = 145073639 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145073267) 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, 4266859 + ... + 4266892.

It is an arithmetic number, because the mean of its divisors is an integer number (38401884).

Almost surely, 2^145073767 is an apocalyptic number.

145073767 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

145073767 is a deficient number, since it is larger than the sum of its proper divisors (8533769).

145073767 is an equidigital number, since it uses as much as digits as its factorization.

145073767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533768.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 145073767 is about 12044.6571972805. The cubic root of 145073767 is about 525.4478621266.

The spelling of 145073767 in words is "one hundred forty-five million, seventy-three thousand, seven hundred sixty-seven".