121730914 has 16 divisors (see below), whose sum is σ = 194643000. Its totient is φ = 56898304.

The previous prime is 121730857. The next prime is 121730923. The reversal of 121730914 is 419037121.

It can be written as a sum of positive squares in 4 ways, for example, as 120890025 + 840889 = 10995^2 + 917^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6949 + ... + 17080.

Almost surely, 2^121730914 is an apocalyptic number.

121730914 is a deficient number, since it is larger than the sum of its proper divisors (72912086).

121730914 is a wasteful number, since it uses less digits than its factorization.

121730914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24197.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 121730914 is about 11033.1733422438. The cubic root of 121730914 is about 495.6026588207.

It can be divided in two parts, 1217 and 30914, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 121730914 in words is "one hundred twenty-one million, seven hundred thirty thousand, nine hundred fourteen".