45531137 has 4 divisors (see below), whose sum is σ = 45560880. Its totient is φ = 45501396.

The previous prime is 45531119. The next prime is 45531139. The reversal of 45531137 is 73113554.

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.

It is a cyclic number.

It is not a de Polignac number, because 45531137 - 2¹⁰ = 45530113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45531139) 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, 12443 + ... + 15680.

It is an arithmetic number, because the mean of its divisors is an integer number (11390220).

It is a Proth number, since it is equal to 2779 ⋅ 2¹⁴ + 1 and 2779 < 2¹⁴.

Almost surely, 2^45531137 is an apocalyptic number.

It is an amenable number.

45531137 is a deficient number, since it is larger than the sum of its proper divisors (29743).

45531137 is a wasteful number, since it uses less digits than its factorization.

45531137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29742.

The product of its digits is 6300, while the sum is 29.

The square root of 45531137 is about 6747.6764148853. The cubic root of 45531137 is about 357.0832661794.

The spelling of 45531137 in words is "forty-five million, five hundred thirty-one thousand, one hundred thirty-seven".