106421525 has 12 divisors (see below), whose sum is σ = 150814752. Its totient is φ = 72974640.

The previous prime is 106421507. The next prime is 106421533. The reversal of 106421525 is 525124601.

It is not a de Polignac number, because 106421525 - 2¹⁴ = 106405141 is a prime.

It is a super-2 number, since 2×106421525² = 22651081966651250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106421494 and 106421503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303887 + ... + 304236.

It is an arithmetic number, because the mean of its divisors is an integer number (12567896).

Almost surely, 2^106421525 is an apocalyptic number.

It is an amenable number.

106421525 is a deficient number, since it is larger than the sum of its proper divisors (44393227).

106421525 is an equidigital number, since it uses as much as digits as its factorization.

106421525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608140 (or 608135 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 106421525 is about 10316.0808934401. The cubic root of 106421525 is about 473.8888524428. Note that the first 4 decimals are identical.

It can be divided in two parts, 10642 and 1525, that added together give a cube (12167 = 23³).

The spelling of 106421525 in words is "one hundred six million, four hundred twenty-one thousand, five hundred twenty-five".