1291414145 has 32 divisors (see below), whose sum is σ = 1828727808. Its totient is φ = 856977408.

The previous prime is 1291414139. The next prime is 1291414147. The reversal of 1291414145 is 5414141921.

It is not a de Polignac number, because 1291414145 - 2⁶ = 1291414081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1291414147) 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, 247352 + ... + 252518.

It is an arithmetic number, because the mean of its divisors is an integer number (57147744).

Almost surely, 2^1291414145 is an apocalyptic number.

It is an amenable number.

1291414145 is a deficient number, since it is larger than the sum of its proper divisors (537313663).

1291414145 is a wasteful number, since it uses less digits than its factorization.

1291414145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409.

The product of its digits is 5760, while the sum is 32.

The square root of 1291414145 is about 35936.2511261261. The cubic root of 1291414145 is about 1088.9848711823.

The spelling of 1291414145 in words is "one billion, two hundred ninety-one million, four hundred fourteen thousand, one hundred forty-five".