1612110641 has 4 divisors (see below), whose sum is σ = 1682202432. Its totient is φ = 1542018852.

The previous prime is 1612110637. The next prime is 1612110649. The reversal of 1612110641 is 1460112161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1460112161 = 137 ⋅10657753.

It is a cyclic number.

It is not a de Polignac number, because 1612110641 - 2² = 1612110637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 70091767 = 1612110641 / (1 + 6 + 1 + 2 + 1 + 1 + 0 + 6 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612110649) 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, 35045861 + ... + 35045906.

It is an arithmetic number, because the mean of its divisors is an integer number (420550608).

Almost surely, 2^1612110641 is an apocalyptic number.

It is an amenable number.

1612110641 is a deficient number, since it is larger than the sum of its proper divisors (70091791).

1612110641 is an equidigital number, since it uses as much as digits as its factorization.

1612110641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70091790.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1612110641 is about 40151.0976313226. The cubic root of 1612110641 is about 1172.5506583981.

It can be divided in two parts, 16121 and 10641, that added together give a palindrome (26762).

The spelling of 1612110641 in words is "one billion, six hundred twelve million, one hundred ten thousand, six hundred forty-one".