101678631 has 4 divisors (see below), whose sum is σ = 135571512. Its totient is φ = 67785752.

The previous prime is 101678587. The next prime is 101678711. The reversal of 101678631 is 136876101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136876101 = 3 ⋅45625367.

It is a cyclic number.

It is not a de Polignac number, because 101678631 - 2⁶ = 101678567 is a prime.

It is a super-2 number, since 2×101678631² = 20677088004068322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101678592 and 101678601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101678131) 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, 16946436 + ... + 16946441.

It is an arithmetic number, because the mean of its divisors is an integer number (33892878).

Almost surely, 2^101678631 is an apocalyptic number.

101678631 is a deficient number, since it is larger than the sum of its proper divisors (33892881).

101678631 is an equidigital number, since it uses as much as digits as its factorization.

101678631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33892880.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 101678631 is about 10083.5822503711. The cubic root of 101678631 is about 466.7416567132.

The spelling of 101678631 in words is "one hundred one million, six hundred seventy-eight thousand, six hundred thirty-one".