1354455021 has 16 divisors (see below), whose sum is σ = 1826342784. Its totient is φ = 892821504.

The previous prime is 1354455013. The next prime is 1354455023. The reversal of 1354455021 is 1205544531.

It is not a de Polignac number, because 1354455021 - 2³ = 1354455013 is a prime.

It is a super-2 number, since 2×1354455021² = 3669096807824220882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1354455021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354455023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99216 + ... + 112038.

It is an arithmetic number, because the mean of its divisors is an integer number (114146424).

Almost surely, 2^1354455021 is an apocalyptic number.

It is an amenable number.

1354455021 is a deficient number, since it is larger than the sum of its proper divisors (471887763).

1354455021 is a wasteful number, since it uses less digits than its factorization.

1354455021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13220.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1354455021 is about 36802.9213650221. The cubic root of 1354455021 is about 1106.4238508477.

Adding to 1354455021 its reverse (1205544531), we get a palindrome (2559999552).

The spelling of 1354455021 in words is "one billion, three hundred fifty-four million, four hundred fifty-five thousand, twenty-one".