137432045 has 4 divisors (see below), whose sum is σ = 164918460. Its totient is φ = 109945632.

The previous prime is 137432027. The next prime is 137432051. The reversal of 137432045 is 540234731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540234731 = 991 ⋅545141.

It can be written as a sum of positive squares in 2 ways, for example, as 95687524 + 41744521 = 9782^2 + 6461^2 .

It is a cyclic number.

It is not a de Polignac number, because 137432045 - 2²⁶ = 70323181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137431999 and 137432017.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13743200 + ... + 13743209.

It is an arithmetic number, because the mean of its divisors is an integer number (41229615).

Almost surely, 2^137432045 is an apocalyptic number.

It is an amenable number.

137432045 is a deficient number, since it is larger than the sum of its proper divisors (27486415).

137432045 is an equidigital number, since it uses as much as digits as its factorization.

137432045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27486414.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 137432045 is about 11723.1414305211. The cubic root of 137432045 is about 516.0550151165.

Adding to 137432045 its reverse (540234731), we get a palindrome (677666776).

The spelling of 137432045 in words is "one hundred thirty-seven million, four hundred thirty-two thousand, forty-five".