145400999 has 2 divisors, whose sum is σ = 145401000. Its totient is φ = 145400998.

The previous prime is 145400993. The next prime is 145401013. The reversal of 145400999 is 999004541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145400999 is a prime.

It is a super-2 number, since 2×145400999² = 42282901020396002, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145400993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72700499 + 72700500.

It is an arithmetic number, because the mean of its divisors is an integer number (72700500).

Almost surely, 2^145400999 is an apocalyptic number.

145400999 is a deficient number, since it is larger than the sum of its proper divisors (1).

145400999 is an equidigital number, since it uses as much as digits as its factorization.

145400999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 145400999 is about 12058.2336600350. The cubic root of 145400999 is about 525.8426365466.

The spelling of 145400999 in words is "one hundred forty-five million, four hundred thousand, nine hundred ninety-nine".