145887428873 has 2 divisors, whose sum is σ = 145887428874. Its totient is φ = 145887428872.

The previous prime is 145887428839. The next prime is 145887428879. The reversal of 145887428873 is 378824788541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138077641744 + 7809787129 = 371588^2 + 88373^2 .

It is a cyclic number.

It is not a de Polignac number, because 145887428873 - 2²² = 145883234569 is a prime.

It is not a weakly prime, because it can be changed into another prime (145887428879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72943714436 + 72943714437.

It is an arithmetic number, because the mean of its divisors is an integer number (72943714437).

Almost surely, 2^145887428873 is an apocalyptic number.

It is an amenable number.

145887428873 is a deficient number, since it is larger than the sum of its proper divisors (1).

145887428873 is an equidigital number, since it uses as much as digits as its factorization.

145887428873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96337920, while the sum is 65.

The spelling of 145887428873 in words is "one hundred forty-five billion, eight hundred eighty-seven million, four hundred twenty-eight thousand, eight hundred seventy-three".