1354845021 has 16 divisors (see below), whose sum is σ = 1872638784. Its totient is φ = 870597504.

The previous prime is 1354845013. The next prime is 1354845029. The reversal of 1354845021 is 1205484531.

It is an interprime number because it is at equal distance from previous prime (1354845013) and next prime (1354845029).

It is not a de Polignac number, because 1354845021 - 2³ = 1354845013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354845029) 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, 45160 + ... + 68913.

It is an arithmetic number, because the mean of its divisors is an integer number (117039924).

Almost surely, 2^1354845021 is an apocalyptic number.

It is an amenable number.

1354845021 is a deficient number, since it is larger than the sum of its proper divisors (517793763).

1354845021 is a wasteful number, since it uses less digits than its factorization.

1354845021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114220.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 1354845021 is about 36808.2194760898. The cubic root of 1354845021 is about 1106.5300347338.

The spelling of 1354845021 in words is "one billion, three hundred fifty-four million, eight hundred forty-five thousand, twenty-one".