121148090 has 24 divisors (see below), whose sum is σ = 253670292. Its totient is φ = 41536320.

The previous prime is 121148087. The next prime is 121148113. The reversal of 121148090 is 90841121.

It can be written as a sum of positive squares in 2 ways, for example, as 113656921 + 7491169 = 10661^2 + 2737^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123131 + ... + 124110.

Almost surely, 2^121148090 is an apocalyptic number.

121148090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121148090 is an abundant number, since it is smaller than the sum of its proper divisors (132522202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121148090 is a wasteful number, since it uses less digits than its factorization.

121148090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247262 (or 247255 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 121148090 is about 11006.7293052932. The cubic root of 121148090 is about 494.8104433537.

The spelling of 121148090 in words is "one hundred twenty-one million, one hundred forty-eight thousand, ninety".