13491051 has 32 divisors (see below), whose sum is σ = 21450240. Its totient is φ = 7382016.

The previous prime is 13491029. The next prime is 13491073. The reversal of 13491051 is 15019431.

13491051 is digitally balanced in base 3, 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 (13491029) and next prime (13491073).

It is not a de Polignac number, because 13491051 - 2⁵ = 13491019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13491001) 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, 75280 + ... + 75458.

It is an arithmetic number, because the mean of its divisors is an integer number (670320).

Almost surely, 2^13491051 is an apocalyptic number.

13491051 is a deficient number, since it is larger than the sum of its proper divisors (7959189).

13491051 is a wasteful number, since it uses less digits than its factorization.

13491051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 13491051 is about 3673.0166076401. The cubic root of 13491051 is about 238.0575326393.

The spelling of 13491051 in words is "thirteen million, four hundred ninety-one thousand, fifty-one".