145824457 has 2 divisors, whose sum is σ = 145824458. Its totient is φ = 145824456.

The previous prime is 145824401. The next prime is 145824467. The reversal of 145824457 is 754428541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136515856 + 9308601 = 11684^2 + 3051^2 .

It is a cyclic number.

It is not a de Polignac number, because 145824457 - 2¹¹ = 145822409 is a prime.

It is not a weakly prime, because it can be changed into another prime (145824467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72912228 + 72912229.

It is an arithmetic number, because the mean of its divisors is an integer number (72912229).

Almost surely, 2^145824457 is an apocalyptic number.

It is an amenable number.

145824457 is a deficient number, since it is larger than the sum of its proper divisors (1).

145824457 is an equidigital number, since it uses as much as digits as its factorization.

145824457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179200, while the sum is 40.

The square root of 145824457 is about 12075.7797677831. The cubic root of 145824457 is about 526.3526203284.

The spelling of 145824457 in words is "one hundred forty-five million, eight hundred twenty-four thousand, four hundred fifty-seven".