13149961 has 8 divisors (see below), whose sum is σ = 14459904. Its totient is φ = 11859120.

The previous prime is 13149937. The next prime is 13149973. The reversal of 13149961 is 16994131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13149961 - 2⁷ = 13149833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13149901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3310 + ... + 6103.

It is an arithmetic number, because the mean of its divisors is an integer number (1807488).

Almost surely, 2^13149961 is an apocalyptic number.

13149961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13149961 is a deficient number, since it is larger than the sum of its proper divisors (1309943).

13149961 is a wasteful number, since it uses less digits than its factorization.

13149961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9551.

The product of its digits is 5832, while the sum is 34.

The square root of 13149961 is about 3626.2874954973. The cubic root of 13149961 is about 236.0341387462.

The spelling of 13149961 in words is "thirteen million, one hundred forty-nine thousand, nine hundred sixty-one".