1081429965 has 48 divisors (see below), whose sum is σ = 2337019776. Its totient is φ = 449424000.

The previous prime is 1081429961. The next prime is 1081430017. The reversal of 1081429965 is 5699241801.

It is not a de Polignac number, because 1081429965 - 2² = 1081429961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1081429965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081429961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152586 + ... + 159515.

It is an arithmetic number, because the mean of its divisors is an integer number (48687912).

Almost surely, 2^1081429965 is an apocalyptic number.

1081429965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1081429965 is an abundant number, since it is smaller than the sum of its proper divisors (1255589811).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081429965 is a wasteful number, since it uses less digits than its factorization.

1081429965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312130 (or 312127 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 1081429965 is about 32885.1024781739. The cubic root of 1081429965 is about 1026.4381841843.

The spelling of 1081429965 in words is "one billion, eighty-one million, four hundred twenty-nine thousand, nine hundred sixty-five".