137709453 has 24 divisors (see below), whose sum is σ = 214031808. Its totient is φ = 78528576.

The previous prime is 137709437. The next prime is 137709457. The reversal of 137709453 is 354907731.

It is a happy number.

It is not a de Polignac number, because 137709453 - 2⁴ = 137709437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137709457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139600 + ... + 140582.

It is an arithmetic number, because the mean of its divisors is an integer number (8917992).

Almost surely, 2^137709453 is an apocalyptic number.

It is an amenable number.

137709453 is a deficient number, since it is larger than the sum of its proper divisors (76322355).

137709453 is an equidigital number, since it uses as much as digits as its factorization.

137709453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 137709453 is about 11734.9671068989. The cubic root of 137709453 is about 516.4020025450.

The spelling of 137709453 in words is "one hundred thirty-seven million, seven hundred nine thousand, four hundred fifty-three".