121326490 has 16 divisors (see below), whose sum is σ = 219345480. Its totient is φ = 48317760.

The previous prime is 121326473. The next prime is 121326497. The reversal of 121326490 is 94623121.

It can be written as a sum of positive squares in 4 ways, for example, as 118613881 + 2712609 = 10891^2 + 1647^2 .

It is not an unprimeable number, because it can be changed into a prime (121326497) 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, 24201 + ... + 28780.

Almost surely, 2^121326490 is an apocalyptic number.

121326490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121326490 is a deficient number, since it is larger than the sum of its proper divisors (98018990).

121326490 is a wasteful number, since it uses less digits than its factorization.

121326490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53217.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 121326490 is about 11014.8304571609. The cubic root of 121326490 is about 495.0532065380.

The spelling of 121326490 in words is "one hundred twenty-one million, three hundred twenty-six thousand, four hundred ninety".