7542254121 has 16 divisors (see below), whose sum is σ = 10097338944. Its totient is φ = 5007697344.

The previous prime is 7542254107. The next prime is 7542254143. The reversal of 7542254121 is 1214522457.

7542254121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7542254121 - 2⁷ = 7542253993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7542254821) 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, 1483035 + ... + 1488111.

It is an arithmetic number, because the mean of its divisors is an integer number (631083684).

Almost surely, 2^7542254121 is an apocalyptic number.

It is an amenable number.

7542254121 is a deficient number, since it is larger than the sum of its proper divisors (2555084823).

7542254121 is a wasteful number, since it uses less digits than its factorization.

7542254121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000.

The product of its digits is 22400, while the sum is 33.

The square root of 7542254121 is about 86846.1520218369. The cubic root of 7542254121 is about 1961.1029230005.

Adding to 7542254121 its reverse (1214522457), we get a palindrome (8756776578).

The spelling of 7542254121 in words is "seven billion, five hundred forty-two million, two hundred fifty-four thousand, one hundred twenty-one".