121072619 has 2 divisors, whose sum is σ = 121072620. Its totient is φ = 121072618.

The previous prime is 121072561. The next prime is 121072717. The reversal of 121072619 is 916270121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121072619 - 2⁸ = 121072363 is a prime.

It is a super-2 number, since 2×121072619² = 29317158143038322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121072591 and 121072600.

It is not a weakly prime, because it can be changed into another prime (121071619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60536309 + 60536310.

It is an arithmetic number, because the mean of its divisors is an integer number (60536310).

Almost surely, 2^121072619 is an apocalyptic number.

121072619 is a deficient number, since it is larger than the sum of its proper divisors (1).

121072619 is an equidigital number, since it uses as much as digits as its factorization.

121072619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 121072619 is about 11003.3003685258. The cubic root of 121072619 is about 494.7076721742.

The spelling of 121072619 in words is "one hundred twenty-one million, seventy-two thousand, six hundred nineteen".