121078477 has 8 divisors (see below), whose sum is σ = 130478264. Its totient is φ = 111691008.

The previous prime is 121078459. The next prime is 121078487. The reversal of 121078477 is 774870121.

It can be written as a sum of positive squares in 4 ways, for example, as 22553001 + 98525476 = 4749^2 + 9926^2 .

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

It is not a de Polignac number, because 121078477 - 2¹¹ = 121076429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121078487) 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, 33553 + ... + 36985.

It is an arithmetic number, because the mean of its divisors is an integer number (16309783).

Almost surely, 2^121078477 is an apocalyptic number.

It is an amenable number.

121078477 is a deficient number, since it is larger than the sum of its proper divisors (9399787).

121078477 is a wasteful number, since it uses less digits than its factorization.

121078477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6159.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 121078477 is about 11003.5665581665. The cubic root of 121078477 is about 494.7156507214.

The spelling of 121078477 in words is "one hundred twenty-one million, seventy-eight thousand, four hundred seventy-seven".