149956603 has 2 divisors, whose sum is σ = 149956604. Its totient is φ = 149956602.

The previous prime is 149956559. The next prime is 149956613. The reversal of 149956603 is 306659941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149956603 - 2⁹ = 149956091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149956603.

It is not a weakly prime, because it can be changed into another prime (149956613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74978301 + 74978302.

It is an arithmetic number, because the mean of its divisors is an integer number (74978302).

Almost surely, 2^149956603 is an apocalyptic number.

149956603 is a deficient number, since it is larger than the sum of its proper divisors (1).

149956603 is an equidigital number, since it uses as much as digits as its factorization.

149956603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 149956603 is about 12245.6769106489. The cubic root of 149956603 is about 531.2780394335.

The spelling of 149956603 in words is "one hundred forty-nine million, nine hundred fifty-six thousand, six hundred three".