6156742 has 4 divisors (see below), whose sum is σ = 9235116. Its totient is φ = 3078370.

The previous prime is 6156739. The next prime is 6156767. The reversal of 6156742 is 2476516.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539184 + ... + 1539187.

It is an arithmetic number, because the mean of its divisors is an integer number (2308779).

Almost surely, 2^6156742 is an apocalyptic number.

6156742 is a deficient number, since it is larger than the sum of its proper divisors (3078374).

6156742 is a wasteful number, since it uses less digits than its factorization.

6156742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078373.

The product of its digits is 10080, while the sum is 31.

The square root of 6156742 is about 2481.2782995867. The cubic root of 6156742 is about 183.2808055207.

The spelling of 6156742 in words is "six million, one hundred fifty-six thousand, seven hundred forty-two".