1354957521 has 16 divisors (see below), whose sum is σ = 1826273280. Its totient is φ = 893491200.

The previous prime is 1354957489. The next prime is 1354957523. The reversal of 1354957521 is 1257594531.

It is a happy number.

It is not a de Polignac number, because 1354957521 - 2⁵ = 1354957489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1354957523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502545 + ... + 505233.

It is an arithmetic number, because the mean of its divisors is an integer number (114142080).

Almost surely, 2^1354957521 is an apocalyptic number.

It is an amenable number.

1354957521 is a deficient number, since it is larger than the sum of its proper divisors (471315759).

1354957521 is a wasteful number, since it uses less digits than its factorization.

1354957521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4456.

The product of its digits is 189000, while the sum is 42.

The square root of 1354957521 is about 36809.7476356467. The cubic root of 1354957521 is about 1106.5606609140.

The spelling of 1354957521 in words is "one billion, three hundred fifty-four million, nine hundred fifty-seven thousand, five hundred twenty-one".