145683451 has 2 divisors, whose sum is σ = 145683452. Its totient is φ = 145683450.

The previous prime is 145683437. The next prime is 145683457. The reversal of 145683451 is 154386541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145683451 - 2²¹ = 143586299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145683451.

It is not a weakly prime, because it can be changed into another prime (145683457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72841725 + 72841726.

It is an arithmetic number, because the mean of its divisors is an integer number (72841726).

Almost surely, 2^145683451 is an apocalyptic number.

145683451 is a deficient number, since it is larger than the sum of its proper divisors (1).

145683451 is an equidigital number, since it uses as much as digits as its factorization.

145683451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 37.

The square root of 145683451 is about 12069.9399749957. The cubic root of 145683451 is about 526.1829121415.

The spelling of 145683451 in words is "one hundred forty-five million, six hundred eighty-three thousand, four hundred fifty-one".