101250045 has 48 divisors (see below), whose sum is σ = 200137392.
Its totient is φ = 46909440.
The previous prime is 101250043. The next prime is 101250053. The reversal of 101250045 is 540052101.
It can be written as a sum of positive squares in 8 ways, for example, as 488601 + 100761444 = 699^2 + 10038^2
It is not a de Polignac number, because 101250045 - 21 = 101250043 is a prime.
It is a super-2 number, since 2×1012500452 = 20503143225004050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (101250041) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4855 + ... + 15035.
It is an arithmetic number, because the mean of its divisors is an integer number (4169529).
Almost surely, 2101250045 is an apocalyptic number.
101250045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
101250045 is a deficient number, since it is larger than the sum of its proper divisors (98887347).
101250045 is a wasteful number, since it uses less digits than its factorization.
101250045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10222 (or 10219 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 18.
The square root of 101250045 is about 10062.3081348168.
The cubic root of 101250045 is about 466.0849449427.
It can be divided in two parts, 1012500 and 45, that multiplied together give a square (45562500 = 67502).
The spelling of 101250045 in words is "one hundred one million, two hundred fifty thousand, forty-five".