80156121 has 8 divisors (see below), whose sum is σ = 106970784. Its totient is φ = 53389440.

The previous prime is 80156119. The next prime is 80156143. The reversal of 80156121 is 12165108.

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

It is not a de Polignac number, because 80156121 - 2¹ = 80156119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80156091 and 80156100.

It is not an unprimeable number, because it can be changed into a prime (80156101) 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, 7896 + ... + 14921.

It is an arithmetic number, because the mean of its divisors is an integer number (13371348).

Almost surely, 2^80156121 is an apocalyptic number.

It is an amenable number.

80156121 is a deficient number, since it is larger than the sum of its proper divisors (26814663).

80156121 is a wasteful number, since it uses less digits than its factorization.

80156121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23991.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 80156121 is about 8952.9950854449. The cubic root of 80156121 is about 431.1670496201.

The spelling of 80156121 in words is "eighty million, one hundred fifty-six thousand, one hundred twenty-one".