147501649 has 4 divisors (see below), whose sum is σ = 148151664. Its totient is φ = 146851636.

The previous prime is 147501643. The next prime is 147501659. The reversal of 147501649 is 946105741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147501649 - 2⁷ = 147501521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147501643) 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, 324667 + ... + 325120.

It is an arithmetic number, because the mean of its divisors is an integer number (37037916).

Almost surely, 2^147501649 is an apocalyptic number.

It is an amenable number.

147501649 is a deficient number, since it is larger than the sum of its proper divisors (650015).

147501649 is an equidigital number, since it uses as much as digits as its factorization.

147501649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650014.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 147501649 is about 12145.0256895570. The cubic root of 147501649 is about 528.3628715873.

The spelling of 147501649 in words is "one hundred forty-seven million, five hundred one thousand, six hundred forty-nine".