100155525 has 12 divisors (see below), whose sum is σ = 165590592. Its totient is φ = 53416240.

The previous prime is 100155521. The next prime is 100155533. The reversal of 100155525 is 525551001.

It is not a de Polignac number, because 100155525 - 2² = 100155521 is a prime.

It is a super-2 number, since 2×100155525² = 20062258376051250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100155495 and 100155504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100155521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667629 + ... + 667778.

It is an arithmetic number, because the mean of its divisors is an integer number (13799216).

Almost surely, 2^100155525 is an apocalyptic number.

100155525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100155525 is a deficient number, since it is larger than the sum of its proper divisors (65435067).

100155525 is a wasteful number, since it uses less digits than its factorization.

100155525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335420 (or 1335415 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 100155525 is about 10007.7732288457. The cubic root of 100155525 is about 464.3993864247.

The spelling of 100155525 in words is "one hundred million, one hundred fifty-five thousand, five hundred twenty-five".