137142678 has 8 divisors (see below), whose sum is σ = 274285368. Its totient is φ = 45714224.

The previous prime is 137142671. The next prime is 137142679. The reversal of 137142678 is 876241731.

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

137142678 is an admirable number.

It is a super-2 number, since 2×137142678² = 37616228258023368, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137142671) 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 3 ways as a sum of consecutive naturals, for example, 11428551 + ... + 11428562.

It is an arithmetic number, because the mean of its divisors is an integer number (34285671).

Almost surely, 2^137142678 is an apocalyptic number.

137142678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137142678 is a wasteful number, since it uses less digits than its factorization.

137142678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22857118.

The product of its digits is 56448, while the sum is 39.

The square root of 137142678 is about 11710.7932267631. The cubic root of 137142678 is about 515.6925712144.

The spelling of 137142678 in words is "one hundred thirty-seven million, one hundred forty-two thousand, six hundred seventy-eight".