145715742857 has 8 divisors (see below), whose sum is σ = 147539903016. Its totient is φ = 143902605312.

The previous prime is 145715742829. The next prime is 145715742871. The reversal of 145715742857 is 758247517541.

It can be written as a sum of positive squares in 4 ways, for example, as 51824977801 + 93890765056 = 227651^2 + 306416^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145715742857 - 2¹² = 145715738761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145715742257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2729048 + ... + 2781929.

It is an arithmetic number, because the mean of its divisors is an integer number (18442487877).

Almost surely, 2^145715742857 is an apocalyptic number.

It is an amenable number.

145715742857 is a deficient number, since it is larger than the sum of its proper divisors (1824160159).

145715742857 is a wasteful number, since it uses less digits than its factorization.

145715742857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511307.

The product of its digits is 10976000, while the sum is 56.

The spelling of 145715742857 in words is "one hundred forty-five billion, seven hundred fifteen million, seven hundred forty-two thousand, eight hundred fifty-seven".