149418403 has 2 divisors, whose sum is σ = 149418404. Its totient is φ = 149418402.

The previous prime is 149418383. The next prime is 149418427. The reversal of 149418403 is 304814941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149418403 - 2¹³ = 149410211 is a prime.

It is not a weakly prime, because it can be changed into another prime (149418433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74709201 + 74709202.

It is an arithmetic number, because the mean of its divisors is an integer number (74709202).

Almost surely, 2^149418403 is an apocalyptic number.

149418403 is a deficient number, since it is larger than the sum of its proper divisors (1).

149418403 is an equidigital number, since it uses as much as digits as its factorization.

149418403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 149418403 is about 12223.6820557474. The cubic root of 149418403 is about 530.6416851047.

The spelling of 149418403 in words is "one hundred forty-nine million, four hundred eighteen thousand, four hundred three".