133012537 has 16 divisors (see below), whose sum is σ = 158924800. Its totient is φ = 108922320.

The previous prime is 133012489. The next prime is 133012541. The reversal of 133012537 is 735210331.

It is a cyclic number.

It is not a de Polignac number, because 133012537 - 2¹¹ = 133010489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133012237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13264 + ... + 21022.

It is an arithmetic number, because the mean of its divisors is an integer number (9932800).

Almost surely, 2^133012537 is an apocalyptic number.

It is an amenable number.

133012537 is a deficient number, since it is larger than the sum of its proper divisors (25912263).

133012537 is an equidigital number, since it uses as much as digits as its factorization.

133012537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 133012537 is about 11533.1061297467. The cubic root of 133012537 is about 510.4629104743.

Adding to 133012537 its reverse (735210331), we get a palindrome (868222868).

The spelling of 133012537 in words is "one hundred thirty-three million, twelve thousand, five hundred thirty-seven".