187440142 has 16 divisors (see below), whose sum is σ = 286654464. Its totient is φ = 91903000.

The previous prime is 187440107. The next prime is 187440163. The reversal of 187440142 is 241044781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23667 + ... + 30577.

It is an arithmetic number, because the mean of its divisors is an integer number (17915904).

Almost surely, 2^187440142 is an apocalyptic number.

187440142 is a deficient number, since it is larger than the sum of its proper divisors (99214322).

187440142 is a wasteful number, since it uses less digits than its factorization.

187440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175.

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 187440142 is about 13690.8780580356. The cubic root of 187440142 is about 572.2962078563.

The spelling of 187440142 in words is "one hundred eighty-seven million, four hundred forty thousand, one hundred forty-two".