121048690 has 48 divisors (see below), whose sum is σ = 252998208. Its totient is φ = 40847328.

The previous prime is 121048663. The next prime is 121048691. The reversal of 121048690 is 96840121.

It is a happy number.

It is a super-2 number, since 2×121048690² = 29305570701432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121048691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742549 + ... + 742711.

It is an arithmetic number, because the mean of its divisors is an integer number (5270796).

Almost surely, 2^121048690 is an apocalyptic number.

121048690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121048690 is an abundant number, since it is smaller than the sum of its proper divisors (131949518).

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

121048690 is a wasteful number, since it uses less digits than its factorization.

121048690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 121048690 is about 11002.2129592187. The cubic root of 121048690 is about 494.6750784027.

The spelling of 121048690 in words is "one hundred twenty-one million, forty-eight thousand, six hundred ninety".