1206534345 has 16 divisors (see below), whose sum is σ = 2014388352. Its totient is φ = 615507200.

The previous prime is 1206534331. The next prime is 1206534349. The reversal of 1206534345 is 5434356021.

It is not a de Polignac number, because 1206534345 - 2⁶ = 1206534281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1206534349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1748256 + ... + 1748945.

It is an arithmetic number, because the mean of its divisors is an integer number (125899272).

Almost surely, 2^1206534345 is an apocalyptic number.

1206534345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206534345 is a deficient number, since it is larger than the sum of its proper divisors (807854007).

1206534345 is a wasteful number, since it uses less digits than its factorization.

1206534345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497232.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 1206534345 is about 34735.2032526082. The cubic root of 1206534345 is about 1064.5839058705.

The spelling of 1206534345 in words is "one billion, two hundred six million, five hundred thirty-four thousand, three hundred forty-five".