137622469 has 4 divisors (see below), whose sum is σ = 137696544. Its totient is φ = 137548396.

The previous prime is 137622349. The next prime is 137622479. The reversal of 137622469 is 964226731.

It is a happy number.

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: 964226731 = 13 ⋅74171287.

It is a cyclic number.

It is not a de Polignac number, because 137622469 - 2⁷ = 137622341 is a prime.

It is a super-2 number, since 2×137622469² = 37879887947311922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137622479) 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, 34177 + ... + 37990.

It is an arithmetic number, because the mean of its divisors is an integer number (34424136).

Almost surely, 2^137622469 is an apocalyptic number.

It is an amenable number.

137622469 is a deficient number, since it is larger than the sum of its proper divisors (74075).

137622469 is an equidigital number, since it uses as much as digits as its factorization.

137622469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74074.

The product of its digits is 108864, while the sum is 40.

The square root of 137622469 is about 11731.2603329736. The cubic root of 137622469 is about 516.2932514226.

The spelling of 137622469 in words is "one hundred thirty-seven million, six hundred twenty-two thousand, four hundred sixty-nine".