147561449 has 8 divisors (see below), whose sum is σ = 168724608. Its totient is φ = 126419040.

The previous prime is 147561409. The next prime is 147561461. The reversal of 147561449 is 944165741.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147561449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147561409) 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, 15644 + ... + 23234.

It is an arithmetic number, because the mean of its divisors is an integer number (21090576).

Almost surely, 2^147561449 is an apocalyptic number.

It is an amenable number.

147561449 is a deficient number, since it is larger than the sum of its proper divisors (21163159).

147561449 is an equidigital number, since it uses as much as digits as its factorization.

147561449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10375.

The product of its digits is 120960, while the sum is 41.

The square root of 147561449 is about 12147.4873533583. The cubic root of 147561449 is about 528.4342647570.

The spelling of 147561449 in words is "one hundred forty-seven million, five hundred sixty-one thousand, four hundred forty-nine".