76681151 has 4 divisors (see below), whose sum is σ = 76706472. Its totient is φ = 76655832.

The previous prime is 76681147. The next prime is 76681153. The reversal of 76681151 is 15118667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15118667 = 61 ⋅247847.

It is a cyclic number.

It is not a de Polignac number, because 76681151 - 2² = 76681147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76681153) 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, 7385 + ... + 14418.

It is an arithmetic number, because the mean of its divisors is an integer number (19176618).

Almost surely, 2^76681151 is an apocalyptic number.

76681151 is a deficient number, since it is larger than the sum of its proper divisors (25321).

76681151 is a wasteful number, since it uses less digits than its factorization.

76681151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25320.

The product of its digits is 10080, while the sum is 35.

The square root of 76681151 is about 8756.7774323663. Note that the first 3 decimals coincide. The cubic root of 76681151 is about 424.8440507415.

The spelling of 76681151 in words is "seventy-six million, six hundred eighty-one thousand, one hundred fifty-one".