1611495473 has 8 divisors (see below), whose sum is σ = 1849824192. Its totient is φ = 1375195536.

The previous prime is 1611495463. The next prime is 1611495481. The reversal of 1611495473 is 3745941161.

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

It is a cyclic number.

It is not a de Polignac number, because 1611495473 - 2⁸ = 1611495217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1611495473.

It is not an unprimeable number, because it can be changed into a prime (1611495463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505490 + ... + 508667.

It is an arithmetic number, because the mean of its divisors is an integer number (231228024).

Almost surely, 2^1611495473 is an apocalyptic number.

It is an amenable number.

1611495473 is a deficient number, since it is larger than the sum of its proper divisors (238328719).

1611495473 is a wasteful number, since it uses less digits than its factorization.

1611495473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014391.

The product of its digits is 90720, while the sum is 41.

The square root of 1611495473 is about 40143.4362380701. The cubic root of 1611495473 is about 1172.4014942332.

The spelling of 1611495473 in words is "one billion, six hundred eleven million, four hundred ninety-five thousand, four hundred seventy-three".