13661494 has 96 divisors (see below), whose sum is σ = 29548800. Its totient is φ = 4656960.

The previous prime is 13661491. The next prime is 13661497. The reversal of 13661494 is 49416631.

13661494 = T₂₅₂ + T₂₅₃ + ... + T₄₆₀.

13661494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13661491) and next prime (13661497).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 471072 + ... + 471100.

It is an arithmetic number, because the mean of its divisors is an integer number (307800).

Almost surely, 2^13661494 is an apocalyptic number.

13661494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13661494 is an abundant number, since it is smaller than the sum of its proper divisors (15887306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13661494 is a wasteful number, since it uses less digits than its factorization.

13661494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 91 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 13661494 is about 3696.1458304564. The cubic root of 13661494 is about 239.0558624811.

The spelling of 13661494 in words is "thirteen million, six hundred sixty-one thousand, four hundred ninety-four".