1641062135 has 4 divisors (see below), whose sum is σ = 1969274568. Its totient is φ = 1312849704.

The previous prime is 1641062131. The next prime is 1641062177. The reversal of 1641062135 is 5312601461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5312601461 = 163 ⋅32592647.

It is a cyclic number.

It is not a de Polignac number, because 1641062135 - 2² = 1641062131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1641062098 and 1641062107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641062131) 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, 164106209 + ... + 164106218.

It is an arithmetic number, because the mean of its divisors is an integer number (492318642).

Almost surely, 2^1641062135 is an apocalyptic number.

1641062135 is a deficient number, since it is larger than the sum of its proper divisors (328212433).

1641062135 is an equidigital number, since it uses as much as digits as its factorization.

1641062135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328212432.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1641062135 is about 40510.0251172472. The cubic root of 1641062135 is about 1179.5282359566.

Adding to 1641062135 its reverse (5312601461), we get a palindrome (6953663596).

The spelling of 1641062135 in words is "one billion, six hundred forty-one million, sixty-two thousand, one hundred thirty-five".