77145101 has 8 divisors (see below), whose sum is σ = 84496608. Its totient is φ = 69850000.

The previous prime is 77145083. The next prime is 77145119. The reversal of 77145101 is 10154177.

It is an interprime number because it is at equal distance from previous prime (77145083) and next prime (77145119).

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

It is not a de Polignac number, because 77145101 - 2¹⁴ = 77128717 is a prime.

It is a super-3 number, since 3×77145101³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77145161) 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, 11210 + ... + 16731.

It is an arithmetic number, because the mean of its divisors is an integer number (10562076).

Almost surely, 2^77145101 is an apocalyptic number.

It is an amenable number.

77145101 is a deficient number, since it is larger than the sum of its proper divisors (7351507).

77145101 is a wasteful number, since it uses less digits than its factorization.

77145101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28203.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 77145101 is about 8783.2283927950. The cubic root of 77145101 is about 425.6991509534.

Adding to 77145101 its reverse (10154177), we get a palindrome (87299278).

The spelling of 77145101 in words is "seventy-seven million, one hundred forty-five thousand, one hundred one".