1616031497 has 16 divisors (see below), whose sum is σ = 1730792448. Its totient is φ = 1505510160.

The previous prime is 1616031479. The next prime is 1616031517. The reversal of 1616031497 is 7941306161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1616031497 - 2⁶ = 1616031433 is a prime.

It is a super-2 number, since 2×1616031497² = 5223115598592122018, which contains 22 as substring.

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 1616031497.

It is not an unprimeable number, because it can be changed into a prime (1616031437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129578 + ... + 141500.

It is an arithmetic number, because the mean of its divisors is an integer number (108174528).

Almost surely, 2^1616031497 is an apocalyptic number.

It is an amenable number.

1616031497 is a deficient number, since it is larger than the sum of its proper divisors (114760951).

1616031497 is a wasteful number, since it uses less digits than its factorization.

1616031497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12100.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1616031497 is about 40199.8942411544. The cubic root of 1616031497 is about 1173.5004857117.

The spelling of 1616031497 in words is "one billion, six hundred sixteen million, thirty-one thousand, four hundred ninety-seven".