1211000495 has 8 divisors (see below), whose sum is σ = 1473668640. Its totient is φ = 955155040.

The previous prime is 1211000471. The next prime is 1211000501. The reversal of 1211000495 is 5940001121.

It is a happy number.

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

It is not a de Polignac number, because 1211000495 - 2⁸ = 1211000239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211000495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705280 + ... + 1705989.

It is an arithmetic number, because the mean of its divisors is an integer number (184208580).

Almost surely, 2^1211000495 is an apocalyptic number.

1211000495 is a deficient number, since it is larger than the sum of its proper divisors (262668145).

1211000495 is an equidigital number, since it uses as much as digits as its factorization.

1211000495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411345.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 1211000495 is about 34799.4323947963. The cubic root of 1211000495 is about 1065.8958554993.

The spelling of 1211000495 in words is "one billion, two hundred eleven million, four hundred ninety-five", and thus it is an aban number.