100121495 has 4 divisors (see below), whose sum is σ = 120145800. Its totient is φ = 80097192.

The previous prime is 100121473. The next prime is 100121521. The reversal of 100121495 is 594121001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100121495 - 2¹⁴ = 100105111 is a prime.

It is a super-2 number, since 2×100121495² = 20048627522070050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100121495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10012145 + ... + 10012154.

It is an arithmetic number, because the mean of its divisors is an integer number (30036450).

Almost surely, 2^100121495 is an apocalyptic number.

100121495 is a deficient number, since it is larger than the sum of its proper divisors (20024305).

100121495 is an equidigital number, since it uses as much as digits as its factorization.

100121495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20024304.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 100121495 is about 10006.0729059906. The cubic root of 100121495 is about 464.3467838970.

Adding to 100121495 its reverse (594121001), we get a palindrome (694242496).

The spelling of 100121495 in words is "one hundred million, one hundred twenty-one thousand, four hundred ninety-five".