40214145 has 8 divisors (see below), whose sum is σ = 64342656. Its totient is φ = 21447536.

The previous prime is 40214123. The next prime is 40214147. The reversal of 40214145 is 54141204.

It is a happy number.

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 40214145 - 2⁸ = 40213889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40214147) 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, 1340457 + ... + 1340486.

It is an arithmetic number, because the mean of its divisors is an integer number (8042832).

Almost surely, 2^40214145 is an apocalyptic number.

It is an amenable number.

40214145 is a deficient number, since it is larger than the sum of its proper divisors (24128511).

40214145 is a wasteful number, since it uses less digits than its factorization.

40214145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680951.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40214145 is about 6341.4623707785. The cubic root of 40214145 is about 342.6044081142.

Adding to 40214145 its reverse (54141204), we get a palindrome (94355349).

It can be divided in two parts, 40 and 214145, that added together give a triangular number (214185 = T₆₅₄).

The spelling of 40214145 in words is "forty million, two hundred fourteen thousand, one hundred forty-five".