80201961 has 32 divisors (see below), whose sum is σ = 137675520. Its totient is φ = 45194112.

The previous prime is 80201959. The next prime is 80201963. The reversal of 80201961 is 16910208.

It is an interprime number because it is at equal distance from previous prime (80201959) and next prime (80201963).

It is not a de Polignac number, because 80201961 - 2¹ = 80201959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80201963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10891 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (4302360).

Almost surely, 2^80201961 is an apocalyptic number.

It is an amenable number.

80201961 is a deficient number, since it is larger than the sum of its proper divisors (57473559).

80201961 is a wasteful number, since it uses less digits than its factorization.

80201961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5896 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 80201961 is about 8955.5547566859. The cubic root of 80201961 is about 431.2492264636.

The spelling of 80201961 in words is "eighty million, two hundred one thousand, nine hundred sixty-one".