290121148 has 12 divisors (see below), whose sum is σ = 509177592. Its totient is φ = 144641840.

The previous prime is 290121137. The next prime is 290121179. The reversal of 290121148 is 841121092.

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, 103123 + ... + 105898.

It is an arithmetic number, because the mean of its divisors is an integer number (42431466).

Almost surely, 2^290121148 is an apocalyptic number.

It is an amenable number.

290121148 is a deficient number, since it is larger than the sum of its proper divisors (219056444).

290121148 is a wasteful number, since it uses less digits than its factorization.

290121148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209372 (or 209370 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 290121148 is about 17032.9430222730. The cubic root of 290121148 is about 662.0027534014.

The spelling of 290121148 in words is "two hundred ninety million, one hundred twenty-one thousand, one hundred forty-eight".