1245255051 has 8 divisors (see below), whose sum is σ = 1663723584. Its totient is φ = 828478280.

The previous prime is 1245255001. The next prime is 1245255071. The reversal of 1245255051 is 1505525421.

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 1245255051 - 2⁶ = 1245254987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1245255001) 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, 421221 + ... + 424166.

It is an arithmetic number, because the mean of its divisors is an integer number (207965448).

Almost surely, 2^1245255051 is an apocalyptic number.

1245255051 is a deficient number, since it is larger than the sum of its proper divisors (418468533).

1245255051 is an equidigital number, since it uses as much as digits as its factorization.

1245255051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845881.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1245255051 is about 35288.1715451509. The cubic root of 1245255051 is about 1075.8525923443.

The spelling of 1245255051 in words is "one billion, two hundred forty-five million, two hundred fifty-five thousand, fifty-one".