78135101 has 8 divisors (see below), whose sum is σ = 85804608. Its totient is φ = 70560000.

The previous prime is 78135089. The next prime is 78135119. The reversal of 78135101 is 10153187.

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

It is a cyclic number.

It is not a de Polignac number, because 78135101 - 2⁶ = 78135037 is a prime.

It is a super-2 number, since 2×78135101² = 12210188016560402, which contains 22 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 (78135151) 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, 21860 + ... + 25181.

It is an arithmetic number, because the mean of its divisors is an integer number (10725576).

Almost surely, 2^78135101 is an apocalyptic number.

It is an amenable number.

78135101 is a deficient number, since it is larger than the sum of its proper divisors (7669507).

78135101 is a wasteful number, since it uses less digits than its factorization.

78135101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47203.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 78135101 is about 8839.4061452113. The cubic root of 78135101 is about 427.5124098400.

Adding to 78135101 its reverse (10153187), we get a palindrome (88288288).

The spelling of 78135101 in words is "seventy-eight million, one hundred thirty-five thousand, one hundred one".