145511077 has 2 divisors, whose sum is σ = 145511078. Its totient is φ = 145511076.

The previous prime is 145511057. The next prime is 145511081. The reversal of 145511077 is 770115541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143664196 + 1846881 = 11986^2 + 1359^2 .

It is a cyclic number.

It is not a de Polignac number, because 145511077 - 2¹⁹ = 144986789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145511017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72755538 + 72755539.

It is an arithmetic number, because the mean of its divisors is an integer number (72755539).

Almost surely, 2^145511077 is an apocalyptic number.

It is an amenable number.

145511077 is a deficient number, since it is larger than the sum of its proper divisors (1).

145511077 is an equidigital number, since it uses as much as digits as its factorization.

145511077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 145511077 is about 12062.7972294986. The cubic root of 145511077 is about 525.9753020831.

The spelling of 145511077 in words is "one hundred forty-five million, five hundred eleven thousand, seventy-seven".