142190694 has 16 divisors (see below), whose sum is σ = 315979440. Its totient is φ = 47396880.

The previous prime is 142190693. The next prime is 142190743. The reversal of 142190694 is 496091241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142190693) 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 7 ways as a sum of consecutive naturals, for example, 1316527 + ... + 1316634.

It is an arithmetic number, because the mean of its divisors is an integer number (19748715).

Almost surely, 2^142190694 is an apocalyptic number.

142190694 is an abundant number, since it is smaller than the sum of its proper divisors (173788746).

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

142190694 is a wasteful number, since it uses less digits than its factorization.

142190694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633172 (or 2633166 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 142190694 is about 11924.3739458304. The cubic root of 142190694 is about 521.9437778000.

It can be divided in two parts, 142190 and 694, that added together give a square (142884 = 378²).

The spelling of 142190694 in words is "one hundred forty-two million, one hundred ninety thousand, six hundred ninety-four".