137452613 has 4 divisors (see below), whose sum is σ = 138150540. Its totient is φ = 136754688.

The previous prime is 137452607. The next prime is 137452619. The reversal of 137452613 is 316254731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316254731 = 13 ⋅24327287.

It is an interprime number because it is at equal distance from previous prime (137452607) and next prime (137452619).

It can be written as a sum of positive squares in 2 ways, for example, as 88774084 + 48678529 = 9422^2 + 6977^2 .

It is a cyclic number.

It is not a de Polignac number, because 137452613 - 2¹² = 137448517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137452613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137452619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348668 + ... + 349061.

It is an arithmetic number, because the mean of its divisors is an integer number (34537635).

Almost surely, 2^137452613 is an apocalyptic number.

It is an amenable number.

137452613 is a deficient number, since it is larger than the sum of its proper divisors (697927).

137452613 is an equidigital number, since it uses as much as digits as its factorization.

137452613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697926.

The product of its digits is 15120, while the sum is 32.

The square root of 137452613 is about 11724.0186369692. The cubic root of 137452613 is about 516.0807579969.

The spelling of 137452613 in words is "one hundred thirty-seven million, four hundred fifty-two thousand, six hundred thirteen".