121495898 has 16 divisors (see below), whose sum is σ = 188739936. Its totient is φ = 58616880.

The previous prime is 121495897. The next prime is 121495909. The reversal of 121495898 is 898594121.

It is a super-2 number, since 2×121495898² = 29522506461652808, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121495897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1373 + ... + 15648.

It is an arithmetic number, because the mean of its divisors is an integer number (11796246).

Almost surely, 2^121495898 is an apocalyptic number.

121495898 is a deficient number, since it is larger than the sum of its proper divisors (67244038).

121495898 is a wasteful number, since it uses less digits than its factorization.

121495898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17149.

The product of its digits is 207360, while the sum is 47.

The square root of 121495898 is about 11022.5177704552. The cubic root of 121495898 is about 495.2835134009.

The spelling of 121495898 in words is "one hundred twenty-one million, four hundred ninety-five thousand, eight hundred ninety-eight".