1245405343 has 8 divisors (see below), whose sum is σ = 1532806688. Its totient is φ = 985375584.

The previous prime is 1245405247. The next prime is 1245405353. The reversal of 1245405343 is 3435045421.

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 1245405343 - 2¹³ = 1245397151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245405353) 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, 6842796 + ... + 6842977.

It is an arithmetic number, because the mean of its divisors is an integer number (191600836).

Almost surely, 2^1245405343 is an apocalyptic number.

1245405343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1245405343 is a deficient number, since it is larger than the sum of its proper divisors (287401345).

1245405343 is a wasteful number, since it uses less digits than its factorization.

1245405343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13685793.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1245405343 is about 35290.3009763306. The cubic root of 1245405343 is about 1075.8958727772.

The spelling of 1245405343 in words is "one billion, two hundred forty-five million, four hundred five thousand, three hundred forty-three".