147091457 has 8 divisors (see below), whose sum is σ = 149104800. Its totient is φ = 145086304.

The previous prime is 147091453. The next prime is 147091489. The reversal of 147091457 is 754190741.

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 147091457 - 2² = 147091453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147091457.

It is not an unprimeable number, because it can be changed into a prime (147091453) 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, 39794 + ... + 43332.

It is an arithmetic number, because the mean of its divisors is an integer number (18638100).

Almost surely, 2^147091457 is an apocalyptic number.

It is an amenable number.

147091457 is a deficient number, since it is larger than the sum of its proper divisors (2013343).

147091457 is an equidigital number, since it uses as much as digits as its factorization.

147091457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 147091457 is about 12128.1266896417. The cubic root of 147091457 is about 527.8726365302.

The spelling of 147091457 in words is "one hundred forty-seven million, ninety-one thousand, four hundred fifty-seven".