1398545601 has 16 divisors (see below), whose sum is σ = 1888912704. Its totient is φ = 920291904.

The previous prime is 1398545593. The next prime is 1398545623. The reversal of 1398545601 is 1065458931.

It is not a de Polignac number, because 1398545601 - 2³ = 1398545593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1398545641) 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, 395895 + ... + 399411.

It is an arithmetic number, because the mean of its divisors is an integer number (118057044).

Almost surely, 2^1398545601 is an apocalyptic number.

It is an amenable number.

1398545601 is a deficient number, since it is larger than the sum of its proper divisors (490367103).

1398545601 is a wasteful number, since it uses less digits than its factorization.

1398545601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 1398545601 is about 37397.1335933651. The cubic root of 1398545601 is about 1118.3014221249.

The spelling of 1398545601 in words is "one billion, three hundred ninety-eight million, five hundred forty-five thousand, six hundred one".