2145743542 has 8 divisors (see below), whose sum is σ = 3254779800. Its totient is φ = 1060816944.

The previous prime is 2145743527. The next prime is 2145743557. The reversal of 2145743542 is 2453475412.

It is an interprime number because it is at equal distance from previous prime (2145743527) and next prime (2145743557).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6027192 + ... + 6027547.

It is an arithmetic number, because the mean of its divisors is an integer number (406847475).

Almost surely, 2^2145743542 is an apocalyptic number.

2145743542 is a deficient number, since it is larger than the sum of its proper divisors (1109036258).

2145743542 is a wasteful number, since it uses less digits than its factorization.

2145743542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12054830.

The product of its digits is 134400, while the sum is 37.

The square root of 2145743542 is about 46322.1711710494. The cubic root of 2145743542 is about 1289.8105889399.

The spelling of 2145743542 in words is "two billion, one hundred forty-five million, seven hundred forty-three thousand, five hundred forty-two".