1354240121 has 4 divisors (see below), whose sum is σ = 1458412452. Its totient is φ = 1250067792.

The previous prime is 1354240117. The next prime is 1354240133. The reversal of 1354240121 is 1210424531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 200618896 + 1153621225 = 14164^2 + 33965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1354240121 - 2² = 1354240117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1354240171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52086146 + ... + 52086171.

It is an arithmetic number, because the mean of its divisors is an integer number (364603113).

Almost surely, 2^1354240121 is an apocalyptic number.

It is an amenable number.

1354240121 is a deficient number, since it is larger than the sum of its proper divisors (104172331).

1354240121 is a wasteful number, since it uses less digits than its factorization.

1354240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104172330.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1354240121 is about 36800.0016440217. The cubic root of 1354240121 is about 1106.3653320934.

Adding to 1354240121 its reverse (1210424531), we get a palindrome (2564664652).

The spelling of 1354240121 in words is "one billion, three hundred fifty-four million, two hundred forty thousand, one hundred twenty-one".