16050981 has 8 divisors (see below), whose sum is σ = 21503584. Its totient is φ = 10649520.

The previous prime is 16050977. The next prime is 16051019. The reversal of 16050981 is 18905061.

16050981 = 164² + 165² + ... + 374².

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 16050981 - 2² = 16050977 is a prime.

It is a super-2 number, since 2×16050981² = 515267982124722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16057981) 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, 12046 + ... + 13311.

It is an arithmetic number, because the mean of its divisors is an integer number (2687948).

Almost surely, 2^16050981 is an apocalyptic number.

It is an amenable number.

16050981 is a deficient number, since it is larger than the sum of its proper divisors (5452603).

16050981 is a wasteful number, since it uses less digits than its factorization.

16050981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25571.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 16050981 is about 4006.3675567776. The cubic root of 16050981 is about 252.2515597058.

The spelling of 16050981 in words is "sixteen million, fifty thousand, nine hundred eighty-one".