149603647 has 2 divisors, whose sum is σ = 149603648. Its totient is φ = 149603646.

The previous prime is 149603609. The next prime is 149603677. The reversal of 149603647 is 746306941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149603647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149603677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74801823 + 74801824.

It is an arithmetic number, because the mean of its divisors is an integer number (74801824).

Almost surely, 2^149603647 is an apocalyptic number.

149603647 is a deficient number, since it is larger than the sum of its proper divisors (1).

149603647 is an equidigital number, since it uses as much as digits as its factorization.

149603647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 149603647 is about 12231.2569672949. The cubic root of 149603647 is about 530.8608852211.

The spelling of 149603647 in words is "one hundred forty-nine million, six hundred three thousand, six hundred forty-seven".