67149142 has 16 divisors (see below), whose sum is σ = 102617712. Its totient is φ = 32947200.

The previous prime is 67149119. The next prime is 67149149. The reversal of 67149142 is 24194176.

It is a junction number, because it is equal to n+sod(n) for n = 67149098 and 67149107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67149149) 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, 41142 + ... + 42742.

It is an arithmetic number, because the mean of its divisors is an integer number (6413607).

Almost surely, 2^67149142 is an apocalyptic number.

67149142 is a deficient number, since it is larger than the sum of its proper divisors (35468570).

67149142 is a wasteful number, since it uses less digits than its factorization.

67149142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983.

The product of its digits is 12096, while the sum is 34.

The square root of 67149142 is about 8194.4580052618. The cubic root of 67149142 is about 406.4559535755.

The spelling of 67149142 in words is "sixty-seven million, one hundred forty-nine thousand, one hundred forty-two".