121339045 has 8 divisors (see below), whose sum is σ = 150627960. Its totient is φ = 93723840.

The previous prime is 121339039. The next prime is 121339051. The reversal of 121339045 is 540933121.

It is an interprime number because it is at equal distance from previous prime (121339039) and next prime (121339051).

It can be written as a sum of positive squares in 4 ways, for example, as 3334276 + 118004769 = 1826^2 + 10863^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-121339045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418266 + ... + 418555.

It is an arithmetic number, because the mean of its divisors is an integer number (18828495).

Almost surely, 2^121339045 is an apocalyptic number.

It is an amenable number.

121339045 is a deficient number, since it is larger than the sum of its proper divisors (29288915).

121339045 is an equidigital number, since it uses as much as digits as its factorization.

121339045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836855.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 121339045 is about 11015.4003558654. The cubic root of 121339045 is about 495.0702821676.

The spelling of 121339045 in words is "one hundred twenty-one million, three hundred thirty-nine thousand, forty-five".