145136377 has 2 divisors, whose sum is σ = 145136378. Its totient is φ = 145136376.

The previous prime is 145136363. The next prime is 145136393. The reversal of 145136377 is 773631541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77633721 + 67502656 = 8811^2 + 8216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145136377 is a prime.

It is a super-2 number, since 2×145136377² = 42129135857372258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145136317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72568188 + 72568189.

It is an arithmetic number, because the mean of its divisors is an integer number (72568189).

Almost surely, 2^145136377 is an apocalyptic number.

It is an amenable number.

145136377 is a deficient number, since it is larger than the sum of its proper divisors (1).

145136377 is an equidigital number, since it uses as much as digits as its factorization.

145136377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 145136377 is about 12047.2559946238. The cubic root of 145136377 is about 525.5234410540.

The spelling of 145136377 in words is "one hundred forty-five million, one hundred thirty-six thousand, three hundred seventy-seven".