100253145 has 16 divisors (see below), whose sum is σ = 165936960. Its totient is φ = 51624384.

The previous prime is 100253141. The next prime is 100253147. The reversal of 100253145 is 541352001.

It is not a de Polignac number, because 100253145 - 2² = 100253141 is a prime.

It is a super-3 number, since 3×100253145³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100253141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114799 + ... + 115668.

It is an arithmetic number, because the mean of its divisors is an integer number (10371060).

Almost surely, 2^100253145 is an apocalyptic number.

100253145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100253145 is a deficient number, since it is larger than the sum of its proper divisors (65683815).

100253145 is a wasteful number, since it uses less digits than its factorization.

100253145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230504.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 100253145 is about 10012.6492498239. The cubic root of 100253145 is about 464.5502183336.

The spelling of 100253145 in words is "one hundred million, two hundred fifty-three thousand, one hundred forty-five".