121425045 has 16 divisors (see below), whose sum is σ = 222034560. Its totient is φ = 55508544.

The previous prime is 121425043. The next prime is 121425053. The reversal of 121425045 is 540524121.

It is not a de Polignac number, because 121425045 - 2¹ = 121425043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121425041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578110 + ... + 578319.

It is an arithmetic number, because the mean of its divisors is an integer number (13877160).

Almost surely, 2^121425045 is an apocalyptic number.

121425045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121425045 is a deficient number, since it is larger than the sum of its proper divisors (100609515).

121425045 is a wasteful number, since it uses less digits than its factorization.

121425045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156444.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 121425045 is about 11019.3032901359. The cubic root of 121425045 is about 495.1872161947.

Adding to 121425045 its reverse (540524121), we get a palindrome (661949166).

The spelling of 121425045 in words is "one hundred twenty-one million, four hundred twenty-five thousand, forty-five".