106404451 has 4 divisors (see below), whose sum is σ = 110073600. Its totient is φ = 102735304.

The previous prime is 106404439. The next prime is 106404457. The reversal of 106404451 is 154404601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154404601 = 13 ⋅11877277.

It is a cyclic number.

It is not a de Polignac number, because 106404451 - 2⁷ = 106404323 is a prime.

It is a super-2 number, since 2×106404451² = 22643814385222802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106404457) 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, 1834531 + ... + 1834588.

It is an arithmetic number, because the mean of its divisors is an integer number (27518400).

Almost surely, 2^106404451 is an apocalyptic number.

106404451 is a deficient number, since it is larger than the sum of its proper divisors (3669149).

106404451 is an equidigital number, since it uses as much as digits as its factorization.

106404451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669148.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 106404451 is about 10315.2533172967. The cubic root of 106404451 is about 473.8635079115.

The spelling of 106404451 in words is "one hundred six million, four hundred four thousand, four hundred fifty-one".