13435961 has 24 divisors (see below), whose sum is σ = 17492160. Its totient is φ = 10090080.

The previous prime is 13435951. The next prime is 13435963. The reversal of 13435961 is 16953431.

It is not a de Polignac number, because 13435961 - 2¹⁸ = 13173817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13435963) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24290 + ... + 24836.

It is an arithmetic number, because the mean of its divisors is an integer number (728840).

Almost surely, 2^13435961 is an apocalyptic number.

13435961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13435961 is a deficient number, since it is larger than the sum of its proper divisors (4056199).

13435961 is a wasteful number, since it uses less digits than its factorization.

13435961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 594 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 13435961 is about 3665.5096507853. The cubic root of 13435961 is about 237.7330587592.

The spelling of 13435961 in words is "thirteen million, four hundred thirty-five thousand, nine hundred sixty-one".