20014145135 has 32 divisors (see below), whose sum is σ = 26325637632. Its totient is φ = 14541373440.

The previous prime is 20014145131. The next prime is 20014145147. The reversal of 20014145135 is 53154141002.

It is not a de Polignac number, because 20014145135 - 2² = 20014145131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20014145131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 919397 + ... + 940913.

It is an arithmetic number, because the mean of its divisors is an integer number (822676176).

Almost surely, 2^20014145135 is an apocalyptic number.

20014145135 is a deficient number, since it is larger than the sum of its proper divisors (6311492497).

20014145135 is a wasteful number, since it uses less digits than its factorization.

20014145135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21923.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20014145135 its reverse (53154141002), we get a palindrome (73168286137).

The spelling of 20014145135 in words is "twenty billion, fourteen million, one hundred forty-five thousand, one hundred thirty-five".