1616051 has 4 divisors (see below), whose sum is σ = 1624704. Its totient is φ = 1607400.

The previous prime is 1616047. The next prime is 1616057. The reversal of 1616051 is 1506161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1506161 = 43 ⋅35027.

It is a cyclic number.

It is not a de Polignac number, because 1616051 - 2² = 1616047 is a prime.

It is a super-3 number, since 3×1616051³ = 12661537384133341953, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1616057) 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, 4040 + ... + 4421.

It is an arithmetic number, because the mean of its divisors is an integer number (406176).

2^1616051 is an apocalyptic number.

1616051 is a deficient number, since it is larger than the sum of its proper divisors (8653).

1616051 is an equidigital number, since it uses as much as digits as its factorization.

1616051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1616051 is about 1271.2399458796. The cubic root of 1616051 is about 117.3505206471.

The spelling of 1616051 in words is "one million, six hundred sixteen thousand, fifty-one".