13745290 has 16 divisors (see below), whose sum is σ = 26644968. Its totient is φ = 5075136.

The previous prime is 13745287. The next prime is 13745309. The reversal of 13745290 is 9254731.

13745290 = T₈₂₀ + T₈₂₁ + ... + T₈₅₈.

13745290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8874441 + 4870849 = 2979^2 + 2207^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52737 + ... + 52996.

Almost surely, 2^13745290 is an apocalyptic number.

13745290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13745290 is a deficient number, since it is larger than the sum of its proper divisors (12899678).

13745290 is a wasteful number, since it uses less digits than its factorization.

13745290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105753.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13745290 is about 3707.4640928807. The cubic root of 13745290 is about 239.5436350776.

The spelling of 13745290 in words is "thirteen million, seven hundred forty-five thousand, two hundred ninety".