1616338131 has 8 divisors (see below), whose sum is σ = 2200971264. Its totient is φ = 1054631880.

The previous prime is 1616338127. The next prime is 1616338169. The reversal of 1616338131 is 1318336161.

It is a happy number.

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

It is not a de Polignac number, because 1616338131 - 2² = 1616338127 is a prime.

It is a super-2 number, since 2×1616338131² = 5225097907449146322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1616338092 and 1616338101.

It is not an unprimeable number, because it can be changed into a prime (1616338111) 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, 5731555 + ... + 5731836.

It is an arithmetic number, because the mean of its divisors is an integer number (275121408).

Almost surely, 2^1616338131 is an apocalyptic number.

1616338131 is a deficient number, since it is larger than the sum of its proper divisors (584633133).

1616338131 is a wasteful number, since it uses less digits than its factorization.

1616338131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11463441.

The product of its digits is 7776, while the sum is 33.

The square root of 1616338131 is about 40203.7079260110. The cubic root of 1616338131 is about 1173.5747029928.

The spelling of 1616338131 in words is "one billion, six hundred sixteen million, three hundred thirty-eight thousand, one hundred thirty-one".