42743515 has 8 divisors (see below), whose sum is σ = 51360480. Its totient is φ = 34149312.

The previous prime is 42743507. The next prime is 42743551. The reversal of 42743515 is 51534724.

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

It is a cyclic number.

It is not a de Polignac number, because 42743515 - 2³ = 42743507 is a prime.

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, 1239 + ... + 9328.

It is an arithmetic number, because the mean of its divisors is an integer number (6420060).

Almost surely, 2^42743515 is an apocalyptic number.

42743515 is a deficient number, since it is larger than the sum of its proper divisors (8616965).

42743515 is a wasteful number, since it uses less digits than its factorization.

42743515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381.

The product of its digits is 16800, while the sum is 31.

The square root of 42743515 is about 6537.8524761576. The cubic root of 42743515 is about 349.6418513250.

The spelling of 42743515 in words is "forty-two million, seven hundred forty-three thousand, five hundred fifteen".