121457070 has 160 divisors (see below), whose sum is σ = 385837056. Its totient is φ = 26827200.

The previous prime is 121457059. The next prime is 121457087. The reversal of 121457070 is 70754121.

121457070 is a `hidden beast` number, since 1 + 21 + 4 + 570 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 175425 + ... + 176115.

Almost surely, 2^121457070 is an apocalyptic number.

121457070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121457070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192918528).

121457070 is an abundant number, since it is smaller than the sum of its proper divisors (264379986).

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

121457070 is a wasteful number, since it uses less digits than its factorization.

121457070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 121457070 is about 11020.7563261330. The cubic root of 121457070 is about 495.2307464143.

The spelling of 121457070 in words is "one hundred twenty-one million, four hundred fifty-seven thousand, seventy".