137485469 has 4 divisors (see below), whose sum is σ = 149984160. Its totient is φ = 124986780.

The previous prime is 137485459. The next prime is 137485487. The reversal of 137485469 is 964584731.

137485469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 964584731 = 11 ⋅87689521.

It is a cyclic number.

It is not a de Polignac number, because 137485469 - 2²⁴ = 120708253 is a prime.

It is a super-2 number, since 2×137485469² = 37804508372299922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137485459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6249329 + ... + 6249350.

It is an arithmetic number, because the mean of its divisors is an integer number (37496040).

Almost surely, 2^137485469 is an apocalyptic number.

It is an amenable number.

137485469 is a deficient number, since it is larger than the sum of its proper divisors (12498691).

137485469 is a wasteful number, since it uses less digits than its factorization.

137485469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12498690.

The product of its digits is 725760, while the sum is 47.

The square root of 137485469 is about 11725.4197792659. The cubic root of 137485469 is about 516.1218751939.

The spelling of 137485469 in words is "one hundred thirty-seven million, four hundred eighty-five thousand, four hundred sixty-nine".