1612745897 has 8 divisors (see below), whose sum is σ = 1940145600. Its totient is φ = 1309598064.

The previous prime is 1612745873. The next prime is 1612745903. The reversal of 1612745897 is 7985472161.

It is a happy number.

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 1612745897 - 2⁶ = 1612745833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1612745807) 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, 6062822 + ... + 6063087.

It is an arithmetic number, because the mean of its divisors is an integer number (242518200).

Almost surely, 2^1612745897 is an apocalyptic number.

It is an amenable number.

1612745897 is a deficient number, since it is larger than the sum of its proper divisors (327399703).

1612745897 is a wasteful number, since it uses less digits than its factorization.

1612745897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12125935.

The product of its digits is 846720, while the sum is 50.

The square root of 1612745897 is about 40159.0076695130. The cubic root of 1612745897 is about 1172.7046536232.

The spelling of 1612745897 in words is "one billion, six hundred twelve million, seven hundred forty-five thousand, eight hundred ninety-seven".