77103131 has 16 divisors (see below), whose sum is σ = 90608640. Its totient is φ = 64247040.

The previous prime is 77103113. The next prime is 77103137. The reversal of 77103131 is 13130177.

It is a cyclic number.

It is not a de Polignac number, because 77103131 - 2¹⁰ = 77102107 is a prime.

It is a super-2 number, since 2×77103131² = 11889785620006322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77103097 and 77103106.

It is not an unprimeable number, because it can be changed into a prime (77103137) 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, 36011 + ... + 38091.

It is an arithmetic number, because the mean of its divisors is an integer number (5663040).

Almost surely, 2^77103131 is an apocalyptic number.

77103131 is a deficient number, since it is larger than the sum of its proper divisors (13505509).

77103131 is a wasteful number, since it uses less digits than its factorization.

77103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 77103131 is about 8780.8388551436. The cubic root of 77103131 is about 425.6219378655.

The spelling of 77103131 in words is "seventy-seven million, one hundred three thousand, one hundred thirty-one".