40102151 has 4 divisors (see below), whose sum is σ = 40499304. Its totient is φ = 39705000.

The previous prime is 40102147. The next prime is 40102171. The reversal of 40102151 is 15120104.

40102151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40102151 - 2² = 40102147 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40102171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198425 + ... + 198626.

It is an arithmetic number, because the mean of its divisors is an integer number (10124826).

Almost surely, 2^40102151 is an apocalyptic number.

40102151 is a deficient number, since it is larger than the sum of its proper divisors (397153).

40102151 is a wasteful number, since it uses less digits than its factorization.

40102151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397152.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 40102151 is about 6332.6259166321. The cubic root of 40102151 is about 342.2860681176.

Adding to 40102151 its reverse (15120104), we get a palindrome (55222255).

The spelling of 40102151 in words is "forty million, one hundred two thousand, one hundred fifty-one".