145415377 has 2 divisors, whose sum is σ = 145415378. Its totient is φ = 145415376.

The previous prime is 145415359. The next prime is 145415383. The reversal of 145415377 is 773514541.

145415377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 64577296 = 8991^2 + 8036^2 .

It is a cyclic number.

It is not a de Polignac number, because 145415377 - 2²⁷ = 11197649 is a prime.

It is a super-2 number, since 2×145415377² = 42291263736104258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145415317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72707688 + 72707689.

It is an arithmetic number, because the mean of its divisors is an integer number (72707689).

Almost surely, 2^145415377 is an apocalyptic number.

It is an amenable number.

145415377 is a deficient number, since it is larger than the sum of its proper divisors (1).

145415377 is an equidigital number, since it uses as much as digits as its factorization.

145415377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 145415377 is about 12058.8298354359. The cubic root of 145415377 is about 525.8599686518.

The spelling of 145415377 in words is "one hundred forty-five million, four hundred fifteen thousand, three hundred seventy-seven".