149400001 has 4 divisors (see below), whose sum is σ = 149427504. Its totient is φ = 149372500.

The previous prime is 149399993. The next prime is 149400047. The reversal of 149400001 is 100004941.

149400001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 149400001 - 2³ = 149399993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149401001) 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, 2575 + ... + 17476.

It is an arithmetic number, because the mean of its divisors is an integer number (37356876).

Almost surely, 2^149400001 is an apocalyptic number.

It is an amenable number.

149400001 is a deficient number, since it is larger than the sum of its proper divisors (27503).

149400001 is an equidigital number, since it uses as much as digits as its factorization.

149400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27502.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 149400001 is about 12222.9293133847. The cubic root of 149400001 is about 530.6199000390.

Adding to 149400001 its reverse (100004941), we get a palindrome (249404942).

The spelling of 149400001 in words is "one hundred forty-nine million, four hundred thousand, one".