145004431787 has 2 divisors, whose sum is σ = 145004431788. Its totient is φ = 145004431786.

The previous prime is 145004431723. The next prime is 145004431841. The reversal of 145004431787 is 787134400541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145004431787 - 2⁶ = 145004431723 is a prime.

It is not a weakly prime, because it can be changed into another prime (145001431787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72502215893 + 72502215894.

It is an arithmetic number, because the mean of its divisors is an integer number (72502215894).

Almost surely, 2^145004431787 is an apocalyptic number.

145004431787 is a deficient number, since it is larger than the sum of its proper divisors (1).

145004431787 is an equidigital number, since it uses as much as digits as its factorization.

145004431787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 145004431787 in words is "one hundred forty-five billion, four million, four hundred thirty-one thousand, seven hundred eighty-seven".