145151771 has 2 divisors, whose sum is σ = 145151772. Its totient is φ = 145151770.

The previous prime is 145151759. The next prime is 145151779. The reversal of 145151771 is 177151541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145151771 - 2²⁶ = 78042907 is a prime.

It is not a weakly prime, because it can be changed into another prime (145151779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72575885 + 72575886.

It is an arithmetic number, because the mean of its divisors is an integer number (72575886).

Almost surely, 2^145151771 is an apocalyptic number.

145151771 is a deficient number, since it is larger than the sum of its proper divisors (1).

145151771 is an equidigital number, since it uses as much as digits as its factorization.

145151771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4900, while the sum is 32.

The square root of 145151771 is about 12047.8948783595. The cubic root of 145151771 is about 525.5420204113.

The spelling of 145151771 in words is "one hundred forty-five million, one hundred fifty-one thousand, seven hundred seventy-one".