1207219145 has 32 divisors (see below), whose sum is σ = 1615680000. Its totient is φ = 858574080.

The previous prime is 1207219141. The next prime is 1207219157. The reversal of 1207219145 is 5419127021.

It is not a de Polignac number, because 1207219145 - 2² = 1207219141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1207219141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 472331 + ... + 474879.

It is an arithmetic number, because the mean of its divisors is an integer number (50490000).

Almost surely, 2^1207219145 is an apocalyptic number.

It is an amenable number.

1207219145 is a deficient number, since it is larger than the sum of its proper divisors (408460855).

1207219145 is a wasteful number, since it uses less digits than its factorization.

1207219145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 1207219145 is about 34745.0592890558. The cubic root of 1207219145 is about 1064.7852785539.

The spelling of 1207219145 in words is "one billion, two hundred seven million, two hundred nineteen thousand, one hundred forty-five".