80102045 has 16 divisors (see below), whose sum is σ = 102228480. Its totient is φ = 60044544.

The previous prime is 80102041. The next prime is 80102101. The reversal of 80102045 is 54020108.

It is not a de Polignac number, because 80102045 - 2² = 80102041 is a prime.

It is a super-2 number, since 2×80102045² = 12832675226364050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80102041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18344 + ... + 22286.

It is an arithmetic number, because the mean of its divisors is an integer number (6389280).

Almost surely, 2^80102045 is an apocalyptic number.

80102045 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80102045 is a deficient number, since it is larger than the sum of its proper divisors (22126435).

80102045 is a wasteful number, since it uses less digits than its factorization.

80102045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 80102045 is about 8949.9745809695. The cubic root of 80102045 is about 431.0700679038.

The spelling of 80102045 in words is "eighty million, one hundred two thousand, forty-five".