40125142 has 16 divisors (see below), whose sum is σ = 62157312. Its totient is φ = 19414080.

The previous prime is 40125139. The next prime is 40125143. The reversal of 40125142 is 24152104.

It is a super-2 number, since 2×40125142² = 3220054041040328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125143) 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 7 ways as a sum of consecutive naturals, for example, 8488 + ... + 12340.

It is an arithmetic number, because the mean of its divisors is an integer number (3884832).

Almost surely, 2^40125142 is an apocalyptic number.

40125142 is a deficient number, since it is larger than the sum of its proper divisors (22032170).

40125142 is a wasteful number, since it uses less digits than its factorization.

40125142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40125142 is about 6334.4409382360. The cubic root of 40125142 is about 342.3514677315.

Adding to 40125142 its reverse (24152104), we get a palindrome (64277246).

The spelling of 40125142 in words is "forty million, one hundred twenty-five thousand, one hundred forty-two".