101252419 has 4 divisors (see below), whose sum is σ = 103162896. Its totient is φ = 99341944.

The previous prime is 101252413. The next prime is 101252423. The reversal of 101252419 is 914252101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101252419 is a prime.

It is a super-2 number, since 2×101252419² = 20504104706703122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101252393 and 101252402.

It is not an unprimeable number, because it can be changed into a prime (101252413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955159 + ... + 955264.

It is an arithmetic number, because the mean of its divisors is an integer number (25790724).

Almost surely, 2^101252419 is an apocalyptic number.

101252419 is a deficient number, since it is larger than the sum of its proper divisors (1910477).

101252419 is an equidigital number, since it uses as much as digits as its factorization.

101252419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910476.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 101252419 is about 10062.4260991075. The cubic root of 101252419 is about 466.0885876637.

It can be divided in two parts, 10125 and 2419, that added together give a square (12544 = 112²).

The spelling of 101252419 in words is "one hundred one million, two hundred fifty-two thousand, four hundred nineteen".