100155452 has 6 divisors (see below), whose sum is σ = 175272048. Its totient is φ = 50077724.

The previous prime is 100155443. The next prime is 100155457. The reversal of 100155452 is 254551001.

It is a happy number.

It is a super-2 number, since 2×100155452² = 20062229130648608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100155457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12519428 + ... + 12519435.

It is an arithmetic number, because the mean of its divisors is an integer number (29212008).

Almost surely, 2^100155452 is an apocalyptic number.

It is an amenable number.

100155452 is a deficient number, since it is larger than the sum of its proper divisors (75116596).

100155452 is a wasteful number, since it uses less digits than its factorization.

100155452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25038867 (or 25038865 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 100155452 is about 10007.7695816800. The cubic root of 100155452 is about 464.3992735963.

The spelling of 100155452 in words is "one hundred million, one hundred fifty-five thousand, four hundred fifty-two".