1538420601 has 16 divisors (see below), whose sum is σ = 2121379328. Its totient is φ = 990662400.

The previous prime is 1538420537. The next prime is 1538420603. The reversal of 1538420601 is 1060248351.

It is not a de Polignac number, because 1538420601 - 2⁶ = 1538420537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538420603) 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, 35025 + ... + 65601.

It is an arithmetic number, because the mean of its divisors is an integer number (132586208).

Almost surely, 2^1538420601 is an apocalyptic number.

It is an amenable number.

1538420601 is a deficient number, since it is larger than the sum of its proper divisors (582958727).

1538420601 is a wasteful number, since it uses less digits than its factorization.

1538420601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31152.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1538420601 is about 39222.7051718772. The cubic root of 1538420601 is about 1154.4054337566.

Adding to 1538420601 its reverse (1060248351), we get a palindrome (2598668952).

The spelling of 1538420601 in words is "one billion, five hundred thirty-eight million, four hundred twenty thousand, six hundred one".