121377258 has 16 divisors (see below), whose sum is σ = 269727360. Its totient is φ = 40459068.

The previous prime is 121377257. The next prime is 121377287. The reversal of 121377258 is 852773121.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121377257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123810 + ... + 1123917.

It is an arithmetic number, because the mean of its divisors is an integer number (16857960).

Almost surely, 2^121377258 is an apocalyptic number.

121377258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121377258 is an abundant number, since it is smaller than the sum of its proper divisors (148350102).

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

121377258 is a wasteful number, since it uses less digits than its factorization.

121377258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247738 (or 2247732 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 121377258 is about 11017.1347454772. The cubic root of 121377258 is about 495.1222471255.

The spelling of 121377258 in words is "one hundred twenty-one million, three hundred seventy-seven thousand, two hundred fifty-eight".