145999787 has 2 divisors, whose sum is σ = 145999788. Its totient is φ = 145999786.

The previous prime is 145999771. The next prime is 145999823. The reversal of 145999787 is 787999541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145999787 - 2⁴ = 145999771 is a prime.

It is not a weakly prime, because it can be changed into another prime (145999727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72999893 + 72999894.

It is an arithmetic number, because the mean of its divisors is an integer number (72999894).

Almost surely, 2^145999787 is an apocalyptic number.

145999787 is a deficient number, since it is larger than the sum of its proper divisors (1).

145999787 is an equidigital number, since it uses as much as digits as its factorization.

145999787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 59.

The square root of 145999787 is about 12083.0371595886. The cubic root of 145999787 is about 526.5634867483.

The spelling of 145999787 in words is "one hundred forty-five million, nine hundred ninety-nine thousand, seven hundred eighty-seven".