121558070 has 8 divisors (see below), whose sum is σ = 218804544. Its totient is φ = 48623224.

The previous prime is 121558057. The next prime is 121558079. The reversal of 121558070 is 70855121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121558079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6077894 + ... + 6077913.

It is an arithmetic number, because the mean of its divisors is an integer number (27350568).

Almost surely, 2^121558070 is an apocalyptic number.

121558070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121558070 is a deficient number, since it is larger than the sum of its proper divisors (97246474).

121558070 is a wasteful number, since it uses less digits than its factorization.

121558070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12155814.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 121558070 is about 11025.3376365534. The cubic root of 121558070 is about 495.3679813161.

The spelling of 121558070 in words is "one hundred twenty-one million, five hundred fifty-eight thousand, seventy".