1275431098 has 8 divisors (see below), whose sum is σ = 1996327008. Its totient is φ = 609988764.

The previous prime is 1275431093. The next prime is 1275431099. The reversal of 1275431098 is 8901345721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1275431098.

It is not an unprimeable number, because it can be changed into a prime (1275431093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13863336 + ... + 13863427.

It is an arithmetic number, because the mean of its divisors is an integer number (249540876).

Almost surely, 2^1275431098 is an apocalyptic number.

1275431098 is a deficient number, since it is larger than the sum of its proper divisors (720895910).

1275431098 is a wasteful number, since it uses less digits than its factorization.

1275431098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27726788.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1275431098 is about 35713.1782119710. The cubic root of 1275431098 is about 1084.4736410729.

The spelling of 1275431098 in words is "one billion, two hundred seventy-five million, four hundred thirty-one thousand, ninety-eight".