100155275 has 24 divisors (see below), whose sum is σ = 136116288. Its totient is φ = 72500000.

The previous prime is 100155259. The next prime is 100155277. The reversal of 100155275 is 572551001.

It is a happy number.

It is not a de Polignac number, because 100155275 - 2⁴ = 100155259 is a prime.

It is a super-2 number, since 2×100155275² = 20062158220651250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (100155277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68300 + ... + 69750.

It is an arithmetic number, because the mean of its divisors is an integer number (5671512).

Almost surely, 2^100155275 is an apocalyptic number.

100155275 is a deficient number, since it is larger than the sum of its proper divisors (35961013).

100155275 is a wasteful number, since it uses less digits than its factorization.

100155275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 100155275 is about 10007.7607385469. The cubic root of 100155275 is about 464.3990000258.

The spelling of 100155275 in words is "one hundred million, one hundred fifty-five thousand, two hundred seventy-five".