1354135725 has 48 divisors (see below), whose sum is σ = 2518410240. Its totient is φ = 722176560.

The previous prime is 1354135721. The next prime is 1354135733. The reversal of 1354135725 is 5275314531.

1354135725 is a `hidden beast` number, since 13 + 541 + 35 + 72 + 5 = 666.

It is not a de Polignac number, because 1354135725 - 2² = 1354135721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1354135725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354135721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42292 + ... + 67058.

It is an arithmetic number, because the mean of its divisors is an integer number (52466880).

Almost surely, 2^1354135725 is an apocalyptic number.

1354135725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1354135725 is a deficient number, since it is larger than the sum of its proper divisors (1164274515).

1354135725 is an frugal number, since it uses more digits than its factorization.

1354135725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24798 (or 24775 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 1354135725 is about 36798.5831928350. The cubic root of 1354135725 is about 1106.3369021074.

The spelling of 1354135725 in words is "one billion, three hundred fifty-four million, one hundred thirty-five thousand, seven hundred twenty-five".