1051250245 has 4 divisors (see below), whose sum is σ = 1261500300. Its totient is φ = 841000192.

The previous prime is 1051250231. The next prime is 1051250257. The reversal of 1051250245 is 5420521501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 840594049 + 210656196 = 28993^2 + 14514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051250245 - 2⁹ = 1051249733 is a prime.

It is a super-3 number, since 3×1051250245³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105125020 + ... + 105125029.

It is an arithmetic number, because the mean of its divisors is an integer number (315375075).

Almost surely, 2^1051250245 is an apocalyptic number.

It is an amenable number.

1051250245 is a deficient number, since it is larger than the sum of its proper divisors (210250055).

1051250245 is an equidigital number, since it uses as much as digits as its factorization.

1051250245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210250054.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1051250245 is about 32422.9894519306. The cubic root of 1051250245 is about 1016.7996077463.

Adding to 1051250245 its reverse (5420521501), we get a palindrome (6471771746).

The spelling of 1051250245 in words is "one billion, fifty-one million, two hundred fifty thousand, two hundred forty-five".