1245051245 has 8 divisors (see below), whose sum is σ = 1500587160. Its totient is φ = 991690560.

The previous prime is 1245051239. The next prime is 1245051347. The reversal of 1245051245 is 5421505421.

It can be written as a sum of positive squares in 4 ways, for example, as 696273769 + 548777476 = 26387^2 + 23426^2 .

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

It is not a de Polignac number, because 1245051245 - 2³⁰ = 171309421 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542546 + ... + 544835.

It is an arithmetic number, because the mean of its divisors is an integer number (187573395).

Almost surely, 2^1245051245 is an apocalyptic number.

It is an amenable number.

1245051245 is a deficient number, since it is larger than the sum of its proper divisors (255535915).

1245051245 is a wasteful number, since it uses less digits than its factorization.

1245051245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087615.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1245051245 is about 35285.2836888128. The cubic root of 1245051245 is about 1075.7938956201.

Adding to 1245051245 its reverse (5421505421), we get a palindrome (6666556666).

The spelling of 1245051245 in words is "one billion, two hundred forty-five million, fifty-one thousand, two hundred forty-five".