106643457 has 6 divisors (see below), whose sum is σ = 154040562. Its totient is φ = 71095632.

The previous prime is 106643429. The next prime is 106643477. The reversal of 106643457 is 754346601.

It is a happy number.

106643457 is a `hidden beast` number, since 1 + 0 + 6 + 643 + 4 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104837121 + 1806336 = 10239^2 + 1344^2 .

It is not a de Polignac number, because 106643457 - 2⁶ = 106643393 is a prime.

It is a super-2 number, since 2×106643457² = 22745653841821698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106643477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5924628 + ... + 5924645.

It is an arithmetic number, because the mean of its divisors is an integer number (25673427).

It is a Proth number, since it is equal to 6509 ⋅ 2¹⁴ + 1 and 6509 < 2¹⁴.

Almost surely, 2^106643457 is an apocalyptic number.

It is an amenable number.

106643457 is a deficient number, since it is larger than the sum of its proper divisors (47397105).

106643457 is a wasteful number, since it uses less digits than its factorization.

106643457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11849279 (or 11849276 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 106643457 is about 10326.8318956009. The cubic root of 106643457 is about 474.2180404752.

The spelling of 106643457 in words is "one hundred six million, six hundred forty-three thousand, four hundred fifty-seven".