149567401 has 2 divisors, whose sum is σ = 149567402. Its totient is φ = 149567400.

The previous prime is 149567399. The next prime is 149567441. The reversal of 149567401 is 104765941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146991376 + 2576025 = 12124^2 + 1605^2 .

It is a cyclic number.

It is not a de Polignac number, because 149567401 - 2¹ = 149567399 is a prime.

Together with 149567399, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149567441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74783700 + 74783701.

It is an arithmetic number, because the mean of its divisors is an integer number (74783701).

Almost surely, 2^149567401 is an apocalyptic number.

It is an amenable number.

149567401 is a deficient number, since it is larger than the sum of its proper divisors (1).

149567401 is an equidigital number, since it uses as much as digits as its factorization.

149567401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 149567401 is about 12229.7751819075. The cubic root of 149567401 is about 530.8180093996.

The spelling of 149567401 in words is "one hundred forty-nine million, five hundred sixty-seven thousand, four hundred one".