106401506 has 4 divisors (see below), whose sum is σ = 159602262. Its totient is φ = 53200752.

The previous prime is 106401469. The next prime is 106401527. The reversal of 106401506 is 605104601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 106275481 + 126025 = 10309^2 + 355^2 .

It is a super-2 number, since 2×106401506² = 22642560958136072, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26600375 + ... + 26600378.

Almost surely, 2^106401506 is an apocalyptic number.

106401506 is a deficient number, since it is larger than the sum of its proper divisors (53200756).

106401506 is an equidigital number, since it uses as much as digits as its factorization.

106401506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53200755.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 106401506 is about 10315.1105665427. The cubic root of 106401506 is about 473.8591360990.

The spelling of 106401506 in words is "one hundred six million, four hundred one thousand, five hundred six".