7142649 has 8 divisors (see below), whose sum is σ = 9553632. Its totient is φ = 4746720.

The previous prime is 7142633. The next prime is 7142659. The reversal of 7142649 is 9462417.

It is a happy number.

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

It is not a de Polignac number, because 7142649 - 2⁴ = 7142633 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7³ + 1 + 4 + 2²¹ + 6² + 4⁹ + 9⁷ .

It is not an unprimeable number, because it can be changed into a prime (7142609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2604 + ... + 4589.

It is an arithmetic number, because the mean of its divisors is an integer number (1194204).

Almost surely, 2^7142649 is an apocalyptic number.

It is an amenable number.

7142649 is a deficient number, since it is larger than the sum of its proper divisors (2410983).

7142649 is a wasteful number, since it uses less digits than its factorization.

7142649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527.

The product of its digits is 12096, while the sum is 33.

The square root of 7142649 is about 2672.5734788776. The cubic root of 7142649 is about 192.5838078884.

The spelling of 7142649 in words is "seven million, one hundred forty-two thousand, six hundred forty-nine".