145746187 has 2 divisors, whose sum is σ = 145746188. Its totient is φ = 145746186.

The previous prime is 145746149. The next prime is 145746229. The reversal of 145746187 is 781647541.

It is a weak prime.

It is an emirp because it is prime and its reverse (781647541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145746187 - 2⁷ = 145746059 is a prime.

It is not a weakly prime, because it can be changed into another prime (145746787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72873093 + 72873094.

It is an arithmetic number, because the mean of its divisors is an integer number (72873094).

Almost surely, 2^145746187 is an apocalyptic number.

145746187 is a deficient number, since it is larger than the sum of its proper divisors (1).

145746187 is an equidigital number, since it uses as much as digits as its factorization.

145746187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 145746187 is about 12072.5385482922. The cubic root of 145746187 is about 526.2584317552.

The spelling of 145746187 in words is "one hundred forty-five million, seven hundred forty-six thousand, one hundred eighty-seven".