145452751 has 4 divisors (see below), whose sum is σ = 145479600. Its totient is φ = 145425904.

The previous prime is 145452737. The next prime is 145452767. The reversal of 145452751 is 157254541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157254541 = 1049 ⋅149909.

It is a cyclic number.

It is not a de Polignac number, because 145452751 - 2⁷ = 145452623 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 (145452701) 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, 2131 + ... + 17188.

It is an arithmetic number, because the mean of its divisors is an integer number (36369900).

Almost surely, 2^145452751 is an apocalyptic number.

145452751 is a deficient number, since it is larger than the sum of its proper divisors (26849).

145452751 is an equidigital number, since it uses as much as digits as its factorization.

145452751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26848.

The product of its digits is 28000, while the sum is 34.

The square root of 145452751 is about 12060.3793887257. The cubic root of 145452751 is about 525.9050161733.

The spelling of 145452751 in words is "one hundred forty-five million, four hundred fifty-two thousand, seven hundred fifty-one".