1007517157 has 4 divisors (see below), whose sum is σ = 1008955116. Its totient is φ = 1006079200.

The previous prime is 1007517131. The next prime is 1007517187. The reversal of 1007517157 is 7517157001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7517157001 = 6761 ⋅1111841.

It can be written as a sum of positive squares in 2 ways, for example, as 434680801 + 572836356 = 20849^2 + 23934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1007517157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1007517107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717928 + ... + 719329.

It is an arithmetic number, because the mean of its divisors is an integer number (252238779).

Almost surely, 2^1007517157 is an apocalyptic number.

It is an amenable number.

1007517157 is a deficient number, since it is larger than the sum of its proper divisors (1437959).

1007517157 is an equidigital number, since it uses as much as digits as its factorization.

1007517157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437958.

The product of its (nonzero) digits is 8575, while the sum is 34.

The square root of 1007517157 is about 31741.4107594480. The cubic root of 1007517157 is about 1002.4994664624.

The spelling of 1007517157 in words is "one billion, seven million, five hundred seventeen thousand, one hundred fifty-seven".