1072610257 has 4 divisors (see below), whose sum is σ = 1135704996. Its totient is φ = 1009515520.

The previous prime is 1072610219. The next prime is 1072610281. The reversal of 1072610257 is 7520162701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7520162701 = 45491 ⋅165311.

It can be written as a sum of positive squares in 2 ways, for example, as 774564561 + 298045696 = 27831^2 + 17264^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072610257 - 2¹⁹ = 1072085969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072610657) 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, 31547344 + ... + 31547377.

It is an arithmetic number, because the mean of its divisors is an integer number (283926249).

Almost surely, 2^1072610257 is an apocalyptic number.

1072610257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1072610257 is a deficient number, since it is larger than the sum of its proper divisors (63094739).

1072610257 is an equidigital number, since it uses as much as digits as its factorization.

1072610257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63094738.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1072610257 is about 32750.7291063878. The cubic root of 1072610257 is about 1023.6401581017.

Adding to 1072610257 its reverse (7520162701), we get a palindrome (8592772958).

The spelling of 1072610257 in words is "one billion, seventy-two million, six hundred ten thousand, two hundred fifty-seven".