1261114437 has 16 divisors (see below), whose sum is σ = 1835007552. Its totient is φ = 764037120.

The previous prime is 1261114433. The next prime is 1261114453. The reversal of 1261114437 is 7344111621.

It is not a de Polignac number, because 1261114437 - 2² = 1261114433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261114433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123013 + ... + 132869.

It is an arithmetic number, because the mean of its divisors is an integer number (114687972).

Almost surely, 2^1261114437 is an apocalyptic number.

It is an amenable number.

1261114437 is a deficient number, since it is larger than the sum of its proper divisors (573893115).

1261114437 is a wasteful number, since it uses less digits than its factorization.

1261114437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13748.

The product of its digits is 4032, while the sum is 30.

The square root of 1261114437 is about 35512.1730819166. The cubic root of 1261114437 is about 1080.4006392540.

The spelling of 1261114437 in words is "one billion, two hundred sixty-one million, one hundred fourteen thousand, four hundred thirty-seven".