106531378 has 8 divisors (see below), whose sum is σ = 162812268. Its totient is φ = 52260624.

The previous prime is 106531349. The next prime is 106531379. The reversal of 106531378 is 873135601.

It can be written as a sum of positive squares in 2 ways, for example, as 103897249 + 2634129 = 10193^2 + 1623^2 .

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

It is a super-2 number, since 2×106531378² = 22697868997157768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106531379) 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, 502401 + ... + 502612.

Almost surely, 2^106531378 is an apocalyptic number.

106531378 is a deficient number, since it is larger than the sum of its proper divisors (56280890).

106531378 is a wasteful number, since it uses less digits than its factorization.

106531378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005068.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 106531378 is about 10321.4038773802. The cubic root of 106531378 is about 474.0518527072.

Adding to 106531378 its reverse (873135601), we get a palindrome (979666979).

The spelling of 106531378 in words is "one hundred six million, five hundred thirty-one thousand, three hundred seventy-eight".