147257742 has 8 divisors (see below), whose sum is σ = 294515496. Its totient is φ = 49085912.

The previous prime is 147257731. The next prime is 147257749. The reversal of 147257742 is 247752741.

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

147257742 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 147257742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147257749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12271473 + ... + 12271484.

It is an arithmetic number, because the mean of its divisors is an integer number (36814437).

Almost surely, 2^147257742 is an apocalyptic number.

147257742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147257742 is a wasteful number, since it uses less digits than its factorization.

147257742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24542962.

The product of its digits is 109760, while the sum is 39.

The square root of 147257742 is about 12134.9800988712. The cubic root of 147257742 is about 528.0714793610.

The spelling of 147257742 in words is "one hundred forty-seven million, two hundred fifty-seven thousand, seven hundred forty-two".