121470 has 16 divisors (see below), whose sum is σ = 291600. Its totient is φ = 32384.

The previous prime is 121469. The next prime is 121487. The reversal of 121470 is 74121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121470.

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, 1995 + ... + 2054.

It is an arithmetic number, because the mean of its divisors is an integer number (18225).

2¹²¹⁴⁷⁰ is an apocalyptic number.

121470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121470 is an abundant number, since it is smaller than the sum of its proper divisors (170130).

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

121470 is a wasteful number, since it uses less digits than its factorization.

121470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 121470 is about 348.5254653537. The cubic root of 121470 is about 49.5248319445.

Adding to 121470 its reverse (74121), we get a palindrome (195591).

The spelling of 121470 in words is "one hundred twenty-one thousand, four hundred seventy", and thus it is an iban number.