6157642 has 4 divisors (see below), whose sum is σ = 9236466. Its totient is φ = 3078820.

The previous prime is 6157639. The next prime is 6157661. The reversal of 6157642 is 2467516.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 5294601 + 863041 = 2301^2 + 929^2 .

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 plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1539409 + ... + 1539412.

Almost surely, 2^6157642 is an apocalyptic number.

6157642 is a deficient number, since it is larger than the sum of its proper divisors (3078824).

6157642 is a wasteful number, since it uses less digits than its factorization.

6157642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078823.

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

The square root of 6157642 is about 2481.4596510925. The cubic root of 6157642 is about 183.2897358223.

The spelling of 6157642 in words is "six million, one hundred fifty-seven thousand, six hundred forty-two".