1331089695 has 48 divisors (see below), whose sum is σ = 2592757440. Its totient is φ = 626807808.

The previous prime is 1331089691. The next prime is 1331089729. The reversal of 1331089695 is 5969801331.

1331089695 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1331089695 - 2² = 1331089691 is a prime.

It is a super-2 number, since 2×1331089695² = 3543599552270386050, which contains 22 as substring.

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 1331089695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331089691) 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, 36010 + ... + 62919.

It is an arithmetic number, because the mean of its divisors is an integer number (54015780).

Almost surely, 2^1331089695 is an apocalyptic number.

1331089695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1331089695 is a deficient number, since it is larger than the sum of its proper divisors (1261667745).

1331089695 is a wasteful number, since it uses less digits than its factorization.

1331089695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98976 (or 98973 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1331089695 is about 36484.1019486570. The cubic root of 1331089695 is about 1100.0247088114.

The spelling of 1331089695 in words is "one billion, three hundred thirty-one million, eighty-nine thousand, six hundred ninety-five".