145411857 has 6 divisors (see below), whose sum is σ = 210039362. Its totient is φ = 96941232.

The previous prime is 145411837. The next prime is 145411859. The reversal of 145411857 is 758114541.

It can be written as a sum of positive squares in only one way, i.e., 125350416 + 20061441 = 11196^2 + 4479^2 .

It is not a de Polignac number, because 145411857 - 2⁷ = 145411729 is a prime.

It is a super-2 number, since 2×145411857² = 42289216312376898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145411859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8078428 + ... + 8078445.

Almost surely, 2^145411857 is an apocalyptic number.

It is an amenable number.

145411857 is a deficient number, since it is larger than the sum of its proper divisors (64627505).

145411857 is a wasteful number, since it uses less digits than its factorization.

145411857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16156879 (or 16156876 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 145411857 is about 12058.6838834095. The cubic root of 145411857 is about 525.8557255379.

The spelling of 145411857 in words is "one hundred forty-five million, four hundred eleven thousand, eight hundred fifty-seven".