106621554 has 16 divisors (see below), whose sum is σ = 229646592. Its totient is φ = 32806608.

The previous prime is 106621549. The next prime is 106621573. The reversal of 106621554 is 455126601.

It is a super-2 number, since 2×106621554² = 22736311554749832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683394 + ... + 683549.

It is an arithmetic number, because the mean of its divisors is an integer number (14352912).

Almost surely, 2^106621554 is an apocalyptic number.

106621554 is an abundant number, since it is smaller than the sum of its proper divisors (123025038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106621554 is a wasteful number, since it uses less digits than its factorization.

106621554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366961.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 106621554 is about 10325.7713513325. The cubic root of 106621554 is about 474.1855724451.

The spelling of 106621554 in words is "one hundred six million, six hundred twenty-one thousand, five hundred fifty-four".