145992877 has 2 divisors, whose sum is σ = 145992878. Its totient is φ = 145992876.

The previous prime is 145992863. The next prime is 145992893. The reversal of 145992877 is 778299541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131469156 + 14523721 = 11466^2 + 3811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145992877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145995877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72996438 + 72996439.

It is an arithmetic number, because the mean of its divisors is an integer number (72996439).

Almost surely, 2^145992877 is an apocalyptic number.

It is an amenable number.

145992877 is a deficient number, since it is larger than the sum of its proper divisors (1).

145992877 is an equidigital number, since it uses as much as digits as its factorization.

145992877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 52.

The square root of 145992877 is about 12082.7512181622. The cubic root of 145992877 is about 526.5551794050. Note that the first 3 decimals are identical.

The spelling of 145992877 in words is "one hundred forty-five million, nine hundred ninety-two thousand, eight hundred seventy-seven".