106400451 has 4 divisors (see below), whose sum is σ = 141867272. Its totient is φ = 70933632.

The previous prime is 106400443. The next prime is 106400471. The reversal of 106400451 is 154004601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154004601 = 3 ⋅51334867.

It is not a de Polignac number, because 106400451 - 2³ = 106400443 is a prime.

It is a super-2 number, since 2×106400451² = 22642111946006802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106400431) 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, 17733406 + ... + 17733411.

It is an arithmetic number, because the mean of its divisors is an integer number (35466818).

Almost surely, 2^106400451 is an apocalyptic number.

106400451 is a deficient number, since it is larger than the sum of its proper divisors (35466821).

106400451 is an equidigital number, since it uses as much as digits as its factorization.

106400451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35466820.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 106400451 is about 10315.0594278463. The cubic root of 106400451 is about 473.8575699463.

The spelling of 106400451 in words is "one hundred six million, four hundred thousand, four hundred fifty-one".