40645153 has 8 divisors (see below), whose sum is σ = 42264000. Its totient is φ = 39040848.

The previous prime is 40645133. The next prime is 40645217. The reversal of 40645153 is 35154604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40645153 - 2¹³ = 40636961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40645103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250 + ... + 9292.

It is an arithmetic number, because the mean of its divisors is an integer number (5283000).

Almost surely, 2^40645153 is an apocalyptic number.

It is an amenable number.

40645153 is a deficient number, since it is larger than the sum of its proper divisors (1618847).

40645153 is a wasteful number, since it uses less digits than its factorization.

40645153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40645153 is about 6375.3551273635. The cubic root of 40645153 is about 343.8240520132.

Adding to 40645153 its reverse (35154604), we get a palindrome (75799757).

The spelling of 40645153 in words is "forty million, six hundred forty-five thousand, one hundred fifty-three".