121634670 has 16 divisors (see below), whose sum is σ = 291923280. Its totient is φ = 32435904.

The previous prime is 121634647. The next prime is 121634683. The reversal of 121634670 is 76436121.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4054489 = 121634670 / (1 + 2 + 1 + 6 + 3 + 4 + 6 + 7 + 0).

It is a congruent number.

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, 2027215 + ... + 2027274.

It is an arithmetic number, because the mean of its divisors is an integer number (18245205).

Almost surely, 2^121634670 is an apocalyptic number.

121634670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121634670 is an abundant number, since it is smaller than the sum of its proper divisors (170288610).

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

121634670 is a wasteful number, since it uses less digits than its factorization.

121634670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054499.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 121634670 is about 11028.8109059862. The cubic root of 121634670 is about 495.4720117595.

The spelling of 121634670 in words is "one hundred twenty-one million, six hundred thirty-four thousand, six hundred seventy".