1245342875 has 24 divisors (see below), whose sum is σ = 1777704864. Its totient is φ = 853233600.

The previous prime is 1245342863. The next prime is 1245342887. The reversal of 1245342875 is 5782435421.

It is an interprime number because it is at equal distance from previous prime (1245342863) and next prime (1245342887).

It is not a de Polignac number, because 1245342875 - 2⁸ = 1245342619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1043279 + ... + 1044471.

It is an arithmetic number, because the mean of its divisors is an integer number (74071036).

Almost surely, 2^1245342875 is an apocalyptic number.

1245342875 is a deficient number, since it is larger than the sum of its proper divisors (532361989).

1245342875 is an frugal number, since it uses more digits than its factorization.

1245342875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 1205 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

The square root of 1245342875 is about 35289.4159061892. The cubic root of 1245342875 is about 1075.8778839386.

The spelling of 1245342875 in words is "one billion, two hundred forty-five million, three hundred forty-two thousand, eight hundred seventy-five".