40133537 has 4 divisors (see below), whose sum is σ = 40286400. Its totient is φ = 39980676.

The previous prime is 40133507. The next prime is 40133539. The reversal of 40133537 is 73533104.

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 40133537 - 2¹⁴ = 40117153 is a prime.

It is a super-2 number, since 2×40133537² = 3221401584260738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40133539) 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, 76037 + ... + 76562.

It is an arithmetic number, because the mean of its divisors is an integer number (10071600).

Almost surely, 2^40133537 is an apocalyptic number.

It is an amenable number.

40133537 is a deficient number, since it is larger than the sum of its proper divisors (152863).

40133537 is a wasteful number, since it uses less digits than its factorization.

40133537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152862.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 40133537 is about 6335.1035508506. The cubic root of 40133537 is about 342.3753417086.

The spelling of 40133537 in words is "forty million, one hundred thirty-three thousand, five hundred thirty-seven".