143972742 has 16 divisors (see below), whose sum is σ = 297234432. Its totient is φ = 46442760.

The previous prime is 143972723. The next prime is 143972767. The reversal of 143972742 is 247279341.

It is a self number, because there is not a number n which added to its sum of digits gives 143972742.

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, 386838 + ... + 387209.

It is an arithmetic number, because the mean of its divisors is an integer number (18577152).

Almost surely, 2^143972742 is an apocalyptic number.

143972742 is an abundant number, since it is smaller than the sum of its proper divisors (153261690).

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

143972742 is a wasteful number, since it uses less digits than its factorization.

143972742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774083.

The product of its digits is 84672, while the sum is 39.

The square root of 143972742 is about 11998.8641962479. The cubic root of 143972742 is about 524.1152044544.

The spelling of 143972742 in words is "one hundred forty-three million, nine hundred seventy-two thousand, seven hundred forty-two".